256329834 has 8 divisors (see below), whose sum is σ = 512659680. Its totient is φ = 85443276.

The previous prime is 256329781. The next prime is 256329841. The reversal of 256329834 is 438923652.

256329834 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

256329834 is an admirable number.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21360814 + ... + 21360825.

It is an arithmetic number, because the mean of its divisors is an integer number (64082460).

Almost surely, 2^256329834 is an apocalyptic number.

256329834 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

256329834 is a wasteful number, since it uses less digits than its factorization.

256329834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42721644.

The product of its digits is 311040, while the sum is 42.

The square root of 256329834 is about 16010.3039946155. The cubic root of 256329834 is about 635.2330010671.

The spelling of 256329834 in words is "two hundred fifty-six million, three hundred twenty-nine thousand, eight hundred thirty-four".