The number 2,392,740 can be evenly divided by 1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 27 28 30 35 36 42 45 54 60 63 70 81 84 90 105 108 126 135 140 162 180 189 210 211 252 270 315 324 378 405 420 422 540 567 630 633 756 810 844 945 1,055 1,134 1,260 1,266 1,477 1,620 1,890 1,899 2,110 2,268 2,532 2,835 2,954 3,165 3,780 3,798 4,220 4,431 5,670 5,697 5,908 6,330 7,385 7,596 8,862 9,495 11,340 11,394 12,660 13,293 14,770 17,091 17,724 18,990 22,155 22,788 26,586 28,485 29,540 34,182 37,980 39,879 44,310 53,172 56,970 66,465 68,364 79,758 85,455 88,620 113,940 119,637 132,930 159,516 170,910 199,395 239,274 265,860 341,820 398,790 478,548 598,185 797,580 1,196,370 and 2,392,740, with no remainder.
Since 2,392,740 cannot be divided by just 1 and 2,392,740, it is a composite number.