A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 4392630 can be evenly divided by 1 2 3 5 6 9 10 11 15 17 18 22 27 29 30 33 34 45 51 54 55 58 66 81 85 87 90 99 102 110 135 145 153 162 165 170 174 187 198 255 261 270 290 297 306 319 330 374 405 435 459 493 495 510 522 561 594 638 765 783 810 870 891 918 935 957 986 990 1,122 1,305 1,377 1,479 1,485 1,530 1,566 1,595 1,683 1,782 1,870 1,914 2,295 2,349 2,465 2,610 2,754 2,805 2,871 2,958 2,970 3,190 3,366 3,915 4,437 4,455 4,590 4,698 4,785 4,930 5,049 5,423 5,610 5,742 6,885 7,395 7,830 8,415 8,613 8,874 8,910 9,570 10,098 10,846 11,745 13,311 13,770 14,355 14,790 15,147 16,269 16,830 17,226 22,185 23,490 25,245 25,839 26,622 27,115 28,710 30,294 32,538 39,933 43,065 44,370 48,807 50,490 51,678 54,230 66,555 75,735 79,866 81,345 86,130 97,614 129,195 133,110 146,421 151,470 162,690 199,665 244,035 258,390 292,842 399,330 439,263 488,070 732,105 878,526 1,464,210 2,196,315 and 4,392,630, with no remainder.
Since 4,392,630 cannot be divided by just 1 and 4,392,630, it is not a prime number.