264312660 has 48 divisors (see below), whose sum is σ = 741738816. Its totient is φ = 70324992.

The previous prime is 264312647. The next prime is 264312689. The reversal of 264312660 is 66213462.

264312660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×264312660² = 139722364472551200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23304 + ... + 32736.

It is an arithmetic number, because the mean of its divisors is an integer number (15452892).

Almost surely, 2^264312660 is an apocalyptic number.

264312660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264312660 is an abundant number, since it is smaller than the sum of its proper divisors (477426156).

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

264312660 is a wasteful number, since it uses less digits than its factorization.

264312660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9912 (or 9910 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 264312660 is about 16257.6954086365. The cubic root of 264312660 is about 641.7600155040.

The spelling of 264312660 in words is "two hundred sixty-four million, three hundred twelve thousand, six hundred sixty".