264630646 has 32 divisors (see below), whose sum is σ = 466401600. Its totient is φ = 110246400.

The previous prime is 264630631. The next prime is 264630659. The reversal of 264630646 is 646036462.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 199666 + ... + 200986.

It is an arithmetic number, because the mean of its divisors is an integer number (14575050).

Almost surely, 2^264630646 is an apocalyptic number.

264630646 is a deficient number, since it is larger than the sum of its proper divisors (201770954).

264630646 is a wasteful number, since it uses less digits than its factorization.

264630646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1720.

The product of its (nonzero) digits is 124416, while the sum is 37.

The square root of 264630646 is about 16267.4720224133. The cubic root of 264630646 is about 642.0172725949.

The spelling of 264630646 in words is "two hundred sixty-four million, six hundred thirty thousand, six hundred forty-six".