256710706 has 24 divisors (see below), whose sum is σ = 449418780. Its totient is φ = 109654272.

The previous prime is 256710689. The next prime is 256710709. The reversal of 256710706 is 607017652.

It can be written as a sum of positive squares in 2 ways, for example, as 242580625 + 14130081 = 15575^2 + 3759^2 .

It is not an unprimeable number, because it can be changed into a prime (256710709) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 26490 + ... + 34858.

Almost surely, 2^256710706 is an apocalyptic number.

256710706 is a deficient number, since it is larger than the sum of its proper divisors (192708074).

256710706 is a wasteful number, since it uses less digits than its factorization.

256710706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8698 (or 8691 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 256710706 is about 16022.1941693390. The cubic root of 256710706 is about 635.5474692495.

The spelling of 256710706 in words is "two hundred fifty-six million, seven hundred ten thousand, seven hundred six".