256674933 has 16 divisors (see below), whose sum is σ = 400273600. Its totient is φ = 162110160.

The previous prime is 256674931. The next prime is 256674941. The reversal of 256674933 is 339476652.

It is not a de Polignac number, because 256674933 - 2¹ = 256674931 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256674931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 249658 + ... + 250683.

It is an arithmetic number, because the mean of its divisors is an integer number (25017100).

Almost surely, 2^256674933 is an apocalyptic number.

It is an amenable number.

256674933 is a deficient number, since it is larger than the sum of its proper divisors (143598667).

256674933 is a wasteful number, since it uses less digits than its factorization.

256674933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500369 (or 500363 counting only the distinct ones).

The product of its digits is 816480, while the sum is 45.

The square root of 256674933 is about 16021.0777727343. The cubic root of 256674933 is about 635.5179463985.

The spelling of 256674933 in words is "two hundred fifty-six million, six hundred seventy-four thousand, nine hundred thirty-three".