256975948 has 6 divisors (see below), whose sum is σ = 449707916. Its totient is φ = 128487972.

The previous prime is 256975937. The next prime is 256975949. The reversal of 256975948 is 849579652.

It is not an unprimeable number, because it can be changed into a prime (256975949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32121990 + ... + 32121997.

Almost surely, 2^256975948 is an apocalyptic number.

It is an amenable number.

256975948 is a deficient number, since it is larger than the sum of its proper divisors (192731968).

256975948 is a wasteful number, since it uses less digits than its factorization.

256975948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64243991 (or 64243989 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 55.

The square root of 256975948 is about 16030.4693630598. The cubic root of 256975948 is about 635.7662834666.

The spelling of 256975948 in words is "two hundred fifty-six million, nine hundred seventy-five thousand, nine hundred forty-eight".