256375998 has 12 divisors (see below), whose sum is σ = 555481368. Its totient is φ = 85458660.

The previous prime is 256375967. The next prime is 256376047. The reversal of 256375998 is 899573652.

256375998 is a `hidden beast` number, since 2 + 563 + 75 + 9 + 9 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7121538 + ... + 7121573.

It is an arithmetic number, because the mean of its divisors is an integer number (46290114).

Almost surely, 2^256375998 is an apocalyptic number.

256375998 is an abundant number, since it is smaller than the sum of its proper divisors (299105370).

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

256375998 is a wasteful number, since it uses less digits than its factorization.

256375998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14243119 (or 14243116 counting only the distinct ones).

The product of its digits is 4082400, while the sum is 54.

The square root of 256375998 is about 16011.7456262582. The cubic root of 256375998 is about 635.2711331039.

The spelling of 256375998 in words is "two hundred fifty-six million, three hundred seventy-five thousand, nine hundred ninety-eight".