The number 4,486,320 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 31 36 40 45 48 54 60 62 67 72 80 90 93 108 120 124 134 135 144 155 180 186 201 216 240 248 268 270 279 310 335 360 372 402 432 465 496 536 540 558 603 620 670 720 744 804 837 930 1,005 1,072 1,080 1,116 1,206 1,240 1,340 1,395 1,488 1,608 1,674 1,809 1,860 2,010 2,077 2,160 2,232 2,412 2,480 2,680 2,790 3,015 3,216 3,348 3,618 3,720 4,020 4,154 4,185 4,464 4,824 5,360 5,580 6,030 6,231 6,696 7,236 7,440 8,040 8,308 8,370 9,045 9,648 10,385 11,160 12,060 12,462 13,392 14,472 16,080 16,616 16,740 18,090 18,693 20,770 22,320 24,120 24,924 28,944 31,155 33,232 33,480 36,180 37,386 41,540 48,240 49,848 56,079 62,310 66,960 72,360 74,772 83,080 93,465 99,696 112,158 124,620 144,720 149,544 166,160 186,930 224,316 249,240 280,395 299,088 373,860 448,632 498,480 560,790 747,720 897,264 1,121,580 1,495,440 2,243,160 and 4,486,320, with no remainder.
Since 4,486,320 cannot be divided by just 1 and 4,486,320, it is a composite number.