260312656 has 10 divisors (see below), whose sum is σ = 504355802. Its totient is φ = 130156320.

The previous prime is 260312639. The next prime is 260312659. The reversal of 260312656 is 656213062.

It can be written as a sum of positive squares in only one way, i.e., 179024400 + 81288256 = 13380^2 + 9016^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260312659) by changing a digit.

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 as a sum of consecutive naturals, namely, 8134755 + ... + 8134786.

Almost surely, 2^260312656 is an apocalyptic number.

It is an amenable number.

260312656 is a deficient number, since it is larger than the sum of its proper divisors (244043146).

260312656 is a wasteful number, since it uses less digits than its factorization.

260312656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16269549 (or 16269543 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 260312656 is about 16134.2076347120. The cubic root of 260312656 is about 638.5061643614.

The spelling of 260312656 in words is "two hundred sixty million, three hundred twelve thousand, six hundred fifty-six".