256604374 has 8 divisors (see below), whose sum is σ = 414514800. Its totient is φ = 118432776.

The previous prime is 256604357. The next prime is 256604461. The reversal of 256604374 is 473406652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4934674 + ... + 4934725.

It is an arithmetic number, because the mean of its divisors is an integer number (51814350).

Almost surely, 2^256604374 is an apocalyptic number.

256604374 is a deficient number, since it is larger than the sum of its proper divisors (157910426).

256604374 is a wasteful number, since it uses less digits than its factorization.

256604374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9869414.

The product of its (nonzero) digits is 120960, while the sum is 37.

The square root of 256604374 is about 16018.8755535462. The cubic root of 256604374 is about 635.4597072088.

The spelling of 256604374 in words is "two hundred fifty-six million, six hundred four thousand, three hundred seventy-four".