A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 4497570 can be evenly divided by 1 2 3 5 6 7 9 10 11 14 15 18 21 22 30 33 35 42 45 55 59 63 66 70 77 90 99 105 110 118 121 126 154 165 177 198 210 231 242 295 315 330 354 363 385 413 462 495 531 590 605 630 649 693 726 770 826 847 885 990 1,062 1,089 1,155 1,210 1,239 1,298 1,386 1,694 1,770 1,815 1,947 2,065 2,178 2,310 2,478 2,541 2,655 3,245 3,465 3,630 3,717 3,894 4,130 4,235 4,543 5,082 5,310 5,445 5,841 6,195 6,490 6,930 7,139 7,434 7,623 8,470 9,086 9,735 10,890 11,682 12,390 12,705 13,629 14,278 15,246 18,585 19,470 21,417 22,715 25,410 27,258 29,205 35,695 37,170 38,115 40,887 42,834 45,430 49,973 58,410 64,251 68,145 71,390 76,230 81,774 99,946 107,085 128,502 136,290 149,919 204,435 214,170 249,865 299,838 321,255 408,870 449,757 499,730 642,510 749,595 899,514 1,499,190 2,248,785 and 4,497,570, with no remainder.
Since 4,497,570 cannot be divided by just 1 and 4,497,570, it is not a prime number.