256546304 has 80 divisors (see below), whose sum is σ = 598675968. Its totient is φ = 107538432.

The previous prime is 256546261. The next prime is 256546313. The reversal of 256546304 is 403645652.

It is a happy number.

It is a congruent number.

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, 167687 + ... + 169209.

Almost surely, 2^256546304 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 256546304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (299337984).

256546304 is an abundant number, since it is smaller than the sum of its proper divisors (342129664).

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

256546304 is an equidigital number, since it uses as much as digits as its factorization.

256546304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1595 (or 1579 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 35.

The square root of 256546304 is about 16017.0629017932. The cubic root of 256546304 is about 635.4117683934.

The spelling of 256546304 in words is "two hundred fifty-six million, five hundred forty-six thousand, three hundred four".