256047374 has 48 divisors (see below), whose sum is σ = 436665600. Its totient is φ = 112466640.

The previous prime is 256047361. The next prime is 256047397. The reversal of 256047374 is 473740652.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1127849 + ... + 1128075.

It is an arithmetic number, because the mean of its divisors is an integer number (9097200).

Almost surely, 2^256047374 is an apocalyptic number.

256047374 is a deficient number, since it is larger than the sum of its proper divisors (180618226).

256047374 is a wasteful number, since it uses less digits than its factorization.

256047374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389 (or 378 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 38.

The square root of 256047374 is about 16001.4803690159. The cubic root of 256047374 is about 634.9995858389. Note that the first 3 decimals are identical.

The spelling of 256047374 in words is "two hundred fifty-six million, forty-seven thousand, three hundred seventy-four".