256327630 has 32 divisors (see below), whose sum is σ = 497726208. Its totient is φ = 94483200.

The previous prime is 256327627. The next prime is 256327633. The reversal of 256327630 is 36723652.

It is an interprime number because it is at equal distance from previous prime (256327627) and next prime (256327633).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256327633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97635 + ... + 100225.

It is an arithmetic number, because the mean of its divisors is an integer number (15553944).

Almost surely, 2^256327630 is an apocalyptic number.

256327630 is a deficient number, since it is larger than the sum of its proper divisors (241398578).

256327630 is a wasteful number, since it uses less digits than its factorization.

256327630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3372.

The product of its (nonzero) digits is 45360, while the sum is 34.

The square root of 256327630 is about 16010.2351637944. The cubic root of 256327630 is about 635.2311804213.

The spelling of 256327630 in words is "two hundred fifty-six million, three hundred twenty-seven thousand, six hundred thirty".