256430082 has 16 divisors (see below), whose sum is σ = 535158720. Its totient is φ = 81760272.

The previous prime is 256430051. The next prime is 256430089. The reversal of 256430082 is 280034652.

It is not an unprimeable number, because it can be changed into a prime (256430089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 928957 + ... + 929232.

It is an arithmetic number, because the mean of its divisors is an integer number (33447420).

Almost surely, 2^256430082 is an apocalyptic number.

256430082 is an abundant number, since it is smaller than the sum of its proper divisors (278728638).

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

256430082 is a wasteful number, since it uses less digits than its factorization.

256430082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1858217.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 256430082 is about 16013.4344223842. The cubic root of 256430082 is about 635.3158013367.

The spelling of 256430082 in words is "two hundred fifty-six million, four hundred thirty thousand, eighty-two".