256328322 has 8 divisors (see below), whose sum is σ = 512656656. Its totient is φ = 85442772.

The previous prime is 256328279. The next prime is 256328333. The reversal of 256328322 is 223823652.

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

256328322 is an admirable number.

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, 21360688 + ... + 21360699.

It is an arithmetic number, because the mean of its divisors is an integer number (64082082).

Almost surely, 2^256328322 is an apocalyptic number.

256328322 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.

256328322 is a wasteful number, since it uses less digits than its factorization.

256328322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42721392.

The product of its digits is 34560, while the sum is 33.

The square root of 256328322 is about 16010.2567749552. The cubic root of 256328322 is about 635.2317520589.

The spelling of 256328322 in words is "two hundred fifty-six million, three hundred twenty-eight thousand, three hundred twenty-two".