The number 4,491,600 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 19 20 24 25 30 38 40 48 50 57 60 75 76 80 95 100 114 120 150 152 190 197 200 228 240 285 300 304 380 394 400 456 475 570 591 600 760 788 912 950 985 1,140 1,182 1,200 1,425 1,520 1,576 1,900 1,970 2,280 2,364 2,850 2,955 3,152 3,743 3,800 3,940 4,560 4,728 4,925 5,700 5,910 7,486 7,600 7,880 9,456 9,850 11,229 11,400 11,820 14,775 14,972 15,760 18,715 19,700 22,458 22,800 23,640 29,550 29,944 37,430 39,400 44,916 47,280 56,145 59,100 59,888 74,860 78,800 89,832 93,575 112,290 118,200 149,720 179,664 187,150 224,580 236,400 280,725 299,440 374,300 449,160 561,450 748,600 898,320 1,122,900 1,497,200 2,245,800 and 4,491,600, with no remainder.
Since 4,491,600 cannot be divided by just 1 and 4,491,600, it is a composite number.