264663906 has 16 divisors (see below), whose sum is σ = 570045504. Its totient is φ = 81435024.

The previous prime is 264663899. The next prime is 264663929. The reversal of 264663906 is 609366462.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1696486 + ... + 1696641.

It is an arithmetic number, because the mean of its divisors is an integer number (35627844).

Almost surely, 2^264663906 is an apocalyptic number.

264663906 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

264663906 is an abundant number, since it is smaller than the sum of its proper divisors (305381598).

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

264663906 is a wasteful number, since it uses less digits than its factorization.

264663906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3393145.

The product of its (nonzero) digits is 279936, while the sum is 42.

The square root of 264663906 is about 16268.4942757466. The cubic root of 264663906 is about 642.0441686986.

The spelling of 264663906 in words is "two hundred sixty-four million, six hundred sixty-three thousand, nine hundred six".