264365644 has 12 divisors (see below), whose sum is σ = 477563968. Its totient is φ = 127918800.

The previous prime is 264365609. The next prime is 264365659. The reversal of 264365644 is 446563462.

It is a junction number, because it is equal to n+sod(n) for n = 264365597 and 264365606.

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, 1065867 + ... + 1066114.

Almost surely, 2^264365644 is an apocalyptic number.

It is an amenable number.

264365644 is a deficient number, since it is larger than the sum of its proper divisors (213198324).

264365644 is a wasteful number, since it uses less digits than its factorization.

264365644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2132016 (or 2132014 counting only the distinct ones).

The product of its digits is 414720, while the sum is 40.

The square root of 264365644 is about 16259.3248322309. The cubic root of 264365644 is about 641.8028949494.

The spelling of 264365644 in words is "two hundred sixty-four million, three hundred sixty-five thousand, six hundred forty-four".