264560 has 20 divisors (see below), whose sum is σ = 615288. Its totient is φ = 105792.

The previous prime is 264559. The next prime is 264577. The reversal of 264560 is 65462.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 264560.

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, 1574 + ... + 1733.

2²⁶⁴⁵⁶⁰ is an apocalyptic number.

264560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264560 is an abundant number, since it is smaller than the sum of its proper divisors (350728).

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

264560 is a wasteful number, since it uses less digits than its factorization.

264560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3320 (or 3314 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 264560 is about 514.3539637254. The cubic root of 264560 is about 64.1960136369.

The spelling of 264560 in words is "two hundred sixty-four thousand, five hundred sixty".