256307058 has 32 divisors (see below), whose sum is σ = 650939520. Its totient is φ = 73230480.

The previous prime is 256307021. The next prime is 256307059. The reversal of 256307058 is 850703652.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (256307059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 338653 + ... + 339408.

It is an arithmetic number, because the mean of its divisors is an integer number (20341860).

Almost surely, 2^256307058 is an apocalyptic number.

256307058 is an abundant number, since it is smaller than the sum of its proper divisors (394632462).

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

256307058 is a wasteful number, since it uses less digits than its factorization.

256307058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678079 (or 678073 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 256307058 is about 16009.5926868862. The cubic root of 256307058 is about 635.2141861219.

The spelling of 256307058 in words is "two hundred fifty-six million, three hundred seven thousand, fifty-eight".