264131644 has 24 divisors (see below), whose sum is σ = 535707648. Its totient is φ = 111604080.

The previous prime is 264131629. The next prime is 264131677. The reversal of 264131644 is 446131462.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64444 + ... + 68419.

It is an arithmetic number, because the mean of its divisors is an integer number (22321152).

Almost surely, 2^264131644 is an apocalyptic number.

It is an amenable number.

264131644 is an abundant number, since it is smaller than the sum of its proper divisors (271576004).

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

264131644 is a wasteful number, since it uses less digits than its factorization.

264131644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132945 (or 132943 counting only the distinct ones).

The product of its digits is 13824, while the sum is 31.

The square root of 264131644 is about 16252.1273684401. The cubic root of 264131644 is about 641.6134777373.

The spelling of 264131644 in words is "two hundred sixty-four million, one hundred thirty-one thousand, six hundred forty-four".