74969990 has 32 divisors (see below), whose sum is σ = 137237760. Its totient is φ = 29484000.

The previous prime is 74969989. The next prime is 74970001. The reversal of 74969990 is 9996947.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197621 + ... + 197999.

It is an arithmetic number, because the mean of its divisors is an integer number (4288680).

Almost surely, 2^74969990 is an apocalyptic number.

74969990 is a deficient number, since it is larger than the sum of its proper divisors (62267770).

74969990 is a wasteful number, since it uses less digits than its factorization.

74969990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668.

The product of its (nonzero) digits is 1102248, while the sum is 53.

The square root of 74969990 is about 8658.5212363313. The cubic root of 74969990 is about 421.6600775597.

The spelling of 74969990 in words is "seventy-four million, nine hundred sixty-nine thousand, nine hundred ninety".