74904918 has 16 divisors (see below), whose sum is σ = 163429056. Its totient is φ = 22698440.

The previous prime is 74904913. The next prime is 74904919. The reversal of 74904918 is 81940947.

It is a super-2 number, since 2×74904918² = 11221493481173448, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 74904918.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74904911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 567396 + ... + 567527.

It is an arithmetic number, because the mean of its divisors is an integer number (10214316).

Almost surely, 2^74904918 is an apocalyptic number.

74904918 is an abundant number, since it is smaller than the sum of its proper divisors (88524138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74904918 is a wasteful number, since it uses less digits than its factorization.

74904918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134939.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 74904918 is about 8654.7627350494. The cubic root of 74904918 is about 421.5380455886.

The spelling of 74904918 in words is "seventy-four million, nine hundred four thousand, nine hundred eighteen".