74304256 has 72 divisors (see below), whose sum is σ = 162252720. Its totient is φ = 33755136.

The previous prime is 74304247. The next prime is 74304277. The reversal of 74304256 is 65240347.

It is a super-2 number, since 2×74304256² = 11042244919427072, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276090 + ... + 276358.

It is an arithmetic number, because the mean of its divisors is an integer number (2253510).

Almost surely, 2^74304256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74304256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81126360).

74304256 is an abundant number, since it is smaller than the sum of its proper divisors (87948464).

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

74304256 is a wasteful number, since it uses less digits than its factorization.

74304256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381 (or 367 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 74304256 is about 8619.9916473277. The cubic root of 74304256 is about 420.4082500570.

The spelling of 74304256 in words is "seventy-four million, three hundred four thousand, two hundred fifty-six".