256774416 has 40 divisors (see below), whose sum is σ = 664020000. Its totient is φ = 85502976.

The previous prime is 256774393. The next prime is 256774429. The reversal of 256774416 is 614477652.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57811 + ... + 62093.

It is an arithmetic number, because the mean of its divisors is an integer number (16600500).

Almost surely, 2^256774416 is an apocalyptic number.

It is an amenable number.

256774416 is an abundant number, since it is smaller than the sum of its proper divisors (407245584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

256774416 is a wasteful number, since it uses less digits than its factorization.

256774416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5543 (or 5537 counting only the distinct ones).

The product of its digits is 282240, while the sum is 42.

The square root of 256774416 is about 16024.1822256239. The cubic root of 256774416 is about 635.6000412422.

The spelling of 256774416 in words is "two hundred fifty-six million, seven hundred seventy-four thousand, four hundred sixteen".