256430486 has 8 divisors (see below), whose sum is σ = 414233904. Its totient is φ = 118352520.

The previous prime is 256430477. The next prime is 256430497. The reversal of 256430486 is 684034652.

256430486 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.

It is a congruent 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, 4931330 + ... + 4931381.

It is an arithmetic number, because the mean of its divisors is an integer number (51779238).

Almost surely, 2^256430486 is an apocalyptic number.

256430486 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

256430486 is a deficient number, since it is larger than the sum of its proper divisors (157803418).

256430486 is a wasteful number, since it uses less digits than its factorization.

256430486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9862726.

The product of its (nonzero) digits is 138240, while the sum is 38.

The square root of 256430486 is about 16013.4470367876. The cubic root of 256430486 is about 635.3161349786.

The spelling of 256430486 in words is "two hundred fifty-six million, four hundred thirty thousand, four hundred eighty-six".