256274824 has 32 divisors (see below), whose sum is σ = 521579520. Its totient is φ = 117343296.

The previous prime is 256274807. The next prime is 256274833. The reversal of 256274824 is 428472652.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3507 + ... + 22909.

It is an arithmetic number, because the mean of its divisors is an integer number (16299360).

Almost surely, 2^256274824 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 256274824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260789760).

256274824 is an abundant number, since it is smaller than the sum of its proper divisors (265304696).

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

256274824 is a wasteful number, since it uses less digits than its factorization.

256274824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19549 (or 19545 counting only the distinct ones).

The product of its digits is 215040, while the sum is 40.

The square root of 256274824 is about 16008.5859462977. The cubic root of 256274824 is about 635.1875561458.

The spelling of 256274824 in words is "two hundred fifty-six million, two hundred seventy-four thousand, eight hundred twenty-four".