264425634 has 40 divisors (see below), whose sum is σ = 646378128. Its totient is φ = 80128440.

The previous prime is 264425627. The next prime is 264425653. The reversal of 264425634 is 436524462.

264425634 is a `hidden beast` number, since 2 + 644 + 2 + 5 + 6 + 3 + 4 = 666.

It is a Curzon number.

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 19 ways as a sum of consecutive naturals, for example, 72412 + ... + 75975.

Almost surely, 2^264425634 is an apocalyptic number.

264425634 is an abundant number, since it is smaller than the sum of its proper divisors (381952494).

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

264425634 is a wasteful number, since it uses less digits than its factorization.

264425634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148412 (or 148403 counting only the distinct ones).

The product of its digits is 138240, while the sum is 36.

The square root of 264425634 is about 16261.1695151364. The cubic root of 264425634 is about 641.8514373686.

The spelling of 264425634 in words is "two hundred sixty-four million, four hundred twenty-five thousand, six hundred thirty-four".