A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 5074440 can be evenly divided by 1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 28 30 35 40 42 49 56 60 70 84 98 105 120 140 147 168 196 210 245 280 294 392 420 490 588 735 840 863 980 1,176 1,470 1,726 1,960 2,589 2,940 3,452 4,315 5,178 5,880 6,041 6,904 8,630 10,356 12,082 12,945 17,260 18,123 20,712 24,164 25,890 30,205 34,520 36,246 42,287 48,328 51,780 60,410 72,492 84,574 90,615 103,560 120,820 126,861 144,984 169,148 181,230 211,435 241,640 253,722 338,296 362,460 422,870 507,444 634,305 724,920 845,740 1,014,888 1,268,610 1,691,480 2,537,220 and 5,074,440, with no remainder.
Since 5,074,440 cannot be divided by just 1 and 5,074,440, it is not a prime number.