264644164 has 12 divisors (see below), whose sum is σ = 483263424. Its totient is φ = 126568904.

The previous prime is 264644153. The next prime is 264644197. The reversal of 264644164 is 461446462.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1438192 + ... + 1438375.

It is an arithmetic number, because the mean of its divisors is an integer number (40271952).

Almost surely, 2^264644164 is an apocalyptic number.

It is an amenable number.

264644164 is a deficient number, since it is larger than the sum of its proper divisors (218619260).

264644164 is a wasteful number, since it uses less digits than its factorization.

264644164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2876594 (or 2876592 counting only the distinct ones).

The product of its digits is 110592, while the sum is 37.

The square root of 264644164 is about 16267.8875088316. The cubic root of 264644164 is about 642.0282043619.

It can be divided in two parts, 26464 and 4164, that added together give a triangular number (30628 = T₂₄₇).

The spelling of 264644164 in words is "two hundred sixty-four million, six hundred forty-four thousand, one hundred sixty-four".