A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 5362434 can be evenly divided by 1 2 3 6 7 9 11 14 18 21 22 33 42 53 63 66 73 77 99 106 126 146 154 159 198 219 231 318 371 438 462 477 511 583 657 693 742 803 954 1,022 1,113 1,166 1,314 1,386 1,533 1,606 1,749 2,226 2,409 3,066 3,339 3,498 3,869 4,081 4,599 4,818 5,247 5,621 6,678 7,227 7,738 8,162 9,198 10,494 11,242 11,607 12,243 14,454 16,863 23,214 24,486 27,083 33,726 34,821 36,729 42,559 50,589 54,166 69,642 73,458 81,249 85,118 101,178 127,677 162,498 243,747 255,354 297,913 383,031 487,494 595,826 766,062 893,739 1,787,478 2,681,217 and 5,362,434, with no remainder.
Since 5,362,434 cannot be divided by just 1 and 5,362,434, it is not a prime number.