256495804 has 24 divisors (see below), whose sum is σ = 454325760. Its totient is φ = 126697536.

The previous prime is 256495787. The next prime is 256495819. The reversal of 256495804 is 408594652.

It is a congruent number.

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, 135714 + ... + 137590.

It is an arithmetic number, because the mean of its divisors is an integer number (18930240).

Almost surely, 2^256495804 is an apocalyptic number.

It is an amenable number.

256495804 is a deficient number, since it is larger than the sum of its proper divisors (197829956).

256495804 is a wasteful number, since it uses less digits than its factorization.

256495804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2277 (or 2275 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 43.

The square root of 256495804 is about 16015.4863803757. The cubic root of 256495804 is about 635.3700729964.

The spelling of 256495804 in words is "two hundred fifty-six million, four hundred ninety-five thousand, eight hundred four".