260624660 has 12 divisors (see below), whose sum is σ = 547311828. Its totient is φ = 104249856.

The previous prime is 260624627. The next prime is 260624699. The reversal of 260624660 is 66426062.

It can be written as a sum of positive squares in 2 ways, for example, as 74684164 + 185940496 = 8642^2 + 13636^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6515597 + ... + 6515636.

It is an arithmetic number, because the mean of its divisors is an integer number (45609319).

Almost surely, 2^260624660 is an apocalyptic number.

260624660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260624660 is an abundant number, since it is smaller than the sum of its proper divisors (286687168).

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

260624660 is a wasteful number, since it uses less digits than its factorization.

260624660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13031242 (or 13031240 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 260624660 is about 16143.8737606561. The cubic root of 260624660 is about 638.7611614886.

The spelling of 260624660 in words is "two hundred sixty million, six hundred twenty-four thousand, six hundred sixty".