The number 2,207,790 can be evenly divided by 1 2 3 5 6 9 10 13 15 17 18 26 27 30 34 37 39 45 51 54 65 74 78 85 90 102 111 117 130 135 153 170 185 195 221 222 234 255 270 306 333 351 370 390 442 459 481 510 555 585 629 663 666 702 765 918 962 999 1,105 1,110 1,170 1,258 1,326 1,443 1,530 1,665 1,755 1,887 1,989 1,998 2,210 2,295 2,405 2,886 3,145 3,315 3,330 3,510 3,774 3,978 4,329 4,590 4,810 4,995 5,661 5,967 6,290 6,630 7,215 8,177 8,658 9,435 9,945 9,990 11,322 11,934 12,987 14,430 16,354 16,983 18,870 19,890 21,645 24,531 25,974 28,305 29,835 33,966 40,885 43,290 49,062 56,610 59,670 64,935 73,593 81,770 84,915 122,655 129,870 147,186 169,830 220,779 245,310 367,965 441,558 735,930 1,103,895 and 2,207,790, with no remainder.
Since 2,207,790 cannot be divided by just 1 and 2,207,790, it is a composite number.