256770744 has 32 divisors (see below), whose sum is σ = 642610320. Its totient is φ = 85499136.

The previous prime is 256770721. The next prime is 256770751. The reversal of 256770744 is 447077652.

It is a junction number, because it is equal to n+sod(n) for n = 256770696 and 256770705.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19614 + ... + 29970.

Almost surely, 2^256770744 is an apocalyptic number.

256770744 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

256770744 is an abundant number, since it is smaller than the sum of its proper divisors (385839576).

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

256770744 is a wasteful number, since it uses less digits than its factorization.

256770744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11399 (or 11395 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 42.

The square root of 256770744 is about 16024.0676483844. The cubic root of 256770744 is about 635.5970114304.

The spelling of 256770744 in words is "two hundred fifty-six million, seven hundred seventy thousand, seven hundred forty-four".