74528256 has 120 divisors (see below), whose sum is σ = 218782872. Its totient is φ = 22528000.

The previous prime is 74528243. The next prime is 74528263. The reversal of 74528256 is 65282547.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 185656 + ... + 186056.

Almost surely, 2^74528256 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 74528256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109391436).

74528256 is an abundant number, since it is smaller than the sum of its proper divisors (144254616).

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

74528256 is a wasteful number, since it uses less digits than its factorization.

74528256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444 (or 417 counting only the distinct ones).

The product of its digits is 134400, while the sum is 39.

The square root of 74528256 is about 8632.9749217752. The cubic root of 74528256 is about 420.8302849914.

The spelling of 74528256 in words is "seventy-four million, five hundred twenty-eight thousand, two hundred fifty-six".