260687872 has 24 divisors (see below), whose sum is σ = 521252550. Its totient is φ = 130342912.

The previous prime is 260687863. The next prime is 260687893. The reversal of 260687872 is 278786062.

It can be written as a sum of positive squares in only one way, i.e., 252937216 + 7750656 = 15904^2 + 2784^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61597 + ... + 65692.

Almost surely, 2^260687872 is an apocalyptic number.

It is an amenable number.

260687872 is a deficient number, since it is larger than the sum of its proper divisors (260564678).

260687872 is an equidigital number, since it uses as much as digits as its factorization.

260687872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127311 (or 127291 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 46.

The square root of 260687872 is about 16145.8314124730. The cubic root of 260687872 is about 638.8127991024.

The spelling of 260687872 in words is "two hundred sixty million, six hundred eighty-seven thousand, eight hundred seventy-two".