22639265 has 16 divisors (see below), whose sum is σ = 29730240. Its totient is φ = 16413120.

The previous prime is 22639229. The next prime is 22639283. The reversal of 22639265 is 56293622.

It is not a de Polignac number, because 22639265 - 2²⁰ = 21590689 is a prime.

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, 30266 + ... + 31004.

It is an arithmetic number, because the mean of its divisors is an integer number (1858140).

Almost surely, 2^22639265 is an apocalyptic number.

It is an amenable number.

22639265 is a deficient number, since it is larger than the sum of its proper divisors (7090975).

22639265 is a wasteful number, since it uses less digits than its factorization.

22639265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312.

The product of its digits is 38880, while the sum is 35.

The square root of 22639265 is about 4758.0736648354. The cubic root of 22639265 is about 282.8920705359.

The spelling of 22639265 in words is "twenty-two million, six hundred thirty-nine thousand, two hundred sixty-five".