260664732 has 18 divisors (see below), whose sum is σ = 658902608. Its totient is φ = 86888232.

The previous prime is 260664721. The next prime is 260664749. The reversal of 260664732 is 237466062.

It is a happy number.

260664732 is a `hidden beast` number, since 2 + 6 + 0 + 6 + 647 + 3 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×260664732² = 135892205017263648, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 7240687 = 260664732 / (2 + 6 + 0 + 6 + 6 + 4 + 7 + 3 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3620308 + ... + 3620379.

Almost surely, 2^260664732 is an apocalyptic number.

It is an amenable number.

260664732 is an abundant number, since it is smaller than the sum of its proper divisors (398237876).

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

260664732 is a wasteful number, since it uses less digits than its factorization.

260664732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7240697 (or 7240692 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The square root of 260664732 is about 16145.1148029365. The cubic root of 260664732 is about 638.7938971035.

The spelling of 260664732 in words is "two hundred sixty million, six hundred sixty-four thousand, seven hundred thirty-two".