The number 1,362,240 can be evenly divided by 1 2 3 4 5 6 8 9 10 11 12 15 16 18 20 22 24 30 32 33 36 40 43 44 45 48 55 60 64 66 72 80 86 88 90 96 99 110 120 129 132 144 160 165 172 176 180 192 198 215 220 240 258 264 288 320 330 344 352 360 387 396 430 440 473 480 495 516 528 576 645 660 688 704 720 774 792 860 880 946 960 990 1,032 1,056 1,290 1,320 1,376 1,419 1,440 1,548 1,584 1,720 1,760 1,892 1,935 1,980 2,064 2,112 2,365 2,580 2,640 2,752 2,838 2,880 3,096 3,168 3,440 3,520 3,784 3,870 3,960 4,128 4,257 4,730 5,160 5,280 5,676 6,192 6,336 6,880 7,095 7,568 7,740 7,920 8,256 8,514 9,460 10,320 10,560 11,352 12,384 13,760 14,190 15,136 15,480 15,840 17,028 18,920 20,640 21,285 22,704 24,768 28,380 30,272 30,960 31,680 34,056 37,840 41,280 42,570 45,408 56,760 61,920 68,112 75,680 85,140 90,816 113,520 123,840 136,224 151,360 170,280 227,040 272,448 340,560 454,080 681,120 and 1,362,240, with no remainder.
Since 1,362,240 cannot be divided by just 1 and 1,362,240, it is a composite number.