A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 3825360 can be evenly divided by 1 2 3 4 5 6 7 8 9 10 11 12 14 15 16 18 20 21 22 23 24 27 28 30 33 35 36 40 42 44 45 46 48 54 55 56 60 63 66 69 70 72 77 80 84 88 90 92 99 105 108 110 112 115 120 126 132 135 138 140 144 154 161 165 168 176 180 184 189 198 207 210 216 220 230 231 240 252 253 264 270 276 280 297 308 315 322 330 336 345 360 368 378 385 396 414 420 432 440 460 462 483 495 504 506 528 540 552 560 594 616 621 630 644 660 690 693 720 756 759 770 792 805 828 840 880 920 924 945 966 990 1,008 1,012 1,035 1,080 1,104 1,155 1,188 1,232 1,242 1,260 1,265 1,288 1,320 1,380 1,386 1,449 1,485 1,512 1,518 1,540 1,584 1,610 1,656 1,680 1,771 1,840 1,848 1,890 1,932 1,980 2,024 2,070 2,079 2,160 2,277 2,310 2,376 2,415 2,484 2,520 2,530 2,576 2,640 2,760 2,772 2,898 2,970 3,024 3,036 3,080 3,105 3,220 3,312 3,465 3,542 3,696 3,780 3,795 3,864 3,960 4,048 4,140 4,158 4,347 4,554 4,620 4,752 4,830 4,968 5,040 5,060 5,313 5,520 5,544 5,796 5,940 6,072 6,160 6,210 6,440 6,831 6,930 7,084 7,245 7,560 7,590 7,728 7,920 8,280 8,316 8,694 8,855 9,108 9,240 9,660 9,936 10,120 10,395 10,626 11,088 11,385 11,592 11,880 12,144 12,420 12,880 13,662 13,860 14,168 14,490 15,120 15,180 15,939 16,560 16,632 17,388 17,710 18,216 18,480 19,320 20,240 20,790 21,252 21,735 22,770 23,184 23,760 24,840 26,565 27,324 27,720 28,336 28,980 30,360 31,878 33,264 34,155 34,776 35,420 36,432 38,640 41,580 42,504 43,470 45,540 47,817 49,680 53,130 54,648 55,440 57,960 60,720 63,756 68,310 69,552 70,840 79,695 83,160 85,008 86,940 91,080 95,634 106,260 109,296 115,920 127,512 136,620 141,680 159,390 166,320 173,880 182,160 191,268 212,520 239,085 255,024 273,240 318,780 347,760 382,536 425,040 478,170 546,480 637,560 765,072 956,340 1,275,120 1,912,680 and 3,825,360, with no remainder.
Since 3,825,360 cannot be divided by just 1 and 3,825,360, it is not a prime number.