256345626 has 16 divisors (see below), whose sum is σ = 534982464. Its totient is φ = 81733344.

The previous prime is 256345597. The next prime is 256345627. The reversal of 256345626 is 626543652.

256345626 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (256345627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 928651 + ... + 928926.

It is an arithmetic number, because the mean of its divisors is an integer number (33436404).

Almost surely, 2^256345626 is an apocalyptic number.

256345626 is an abundant number, since it is smaller than the sum of its proper divisors (278636838).

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

256345626 is a wasteful number, since it uses less digits than its factorization.

256345626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1857605.

The product of its digits is 259200, while the sum is 39.

The square root of 256345626 is about 16010.7971694104. The cubic root of 256345626 is about 635.2460459702.

The spelling of 256345626 in words is "two hundred fifty-six million, three hundred forty-five thousand, six hundred twenty-six".