74987418 has 32 divisors (see below), whose sum is σ = 163933632. Its totient is φ = 22678400.

The previous prime is 74987411. The next prime is 74987447. The reversal of 74987418 is 81478947.

It is a super-2 number, since 2×74987418² = 11246225716613448, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (74987411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49480 + ... + 50972.

It is an arithmetic number, because the mean of its divisors is an integer number (5122926).

Almost surely, 2^74987418 is an apocalyptic number.

74987418 is an abundant number, since it is smaller than the sum of its proper divisors (88946214).

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

74987418 is a wasteful number, since it uses less digits than its factorization.

74987418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2270.

The product of its digits is 451584, while the sum is 48.

The square root of 74987418 is about 8659.5275852670. The cubic root of 74987418 is about 421.6927489547.

The spelling of 74987418 in words is "seventy-four million, nine hundred eighty-seven thousand, four hundred eighteen".