256230988 has 24 divisors (see below), whose sum is σ = 490819280. Its totient is φ = 116320320.

The previous prime is 256230973. The next prime is 256231033. The reversal of 256230988 is 889032652.

256230988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×256230988² = 131308638422912288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37218 + ... + 43561.

Almost surely, 2^256230988 is an apocalyptic number.

It is an amenable number.

256230988 is a deficient number, since it is larger than the sum of its proper divisors (234588292).

256230988 is a wasteful number, since it uses less digits than its factorization.

256230988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80857 (or 80855 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 256230988 is about 16007.2167474549. The cubic root of 256230988 is about 635.1513376454.

The spelling of 256230988 in words is "two hundred fifty-six million, two hundred thirty thousand, nine hundred eighty-eight".