The number 4,731,440 can be evenly divided by 1 2 4 5 7 8 10 14 16 17 20 28 34 35 40 49 56 68 70 71 80 85 98 112 119 136 140 142 170 196 238 245 272 280 284 340 355 392 476 490 497 560 568 595 680 710 784 833 952 980 994 1,136 1,190 1,207 1,360 1,420 1,666 1,904 1,960 1,988 2,380 2,414 2,485 2,840 3,332 3,479 3,920 3,976 4,165 4,760 4,828 4,970 5,680 6,035 6,664 6,958 7,952 8,330 8,449 9,520 9,656 9,940 12,070 13,328 13,916 16,660 16,898 17,395 19,312 19,880 24,140 27,832 33,320 33,796 34,790 39,760 42,245 48,280 55,664 59,143 66,640 67,592 69,580 84,490 96,560 118,286 135,184 139,160 168,980 236,572 278,320 295,715 337,960 473,144 591,430 675,920 946,288 1,182,860 2,365,720 and 4,731,440, with no remainder.
Since 4,731,440 cannot be divided by just 1 and 4,731,440, it is a composite number.