22936905 has 32 divisors (see below), whose sum is σ = 41368320. Its totient is φ = 12055680.

The previous prime is 22936897. The next prime is 22936943. The reversal of 22936905 is 50963922.

It is not a de Polignac number, because 22936905 - 2³ = 22936897 is a prime.

It is a super-2 number, since 2×22936905² = 1052203221958050, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22936905.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8389 + ... + 10781.

It is an arithmetic number, because the mean of its divisors is an integer number (1292760).

Almost surely, 2^22936905 is an apocalyptic number.

It is an amenable number.

22936905 is a deficient number, since it is larger than the sum of its proper divisors (18431415).

22936905 is a wasteful number, since it uses less digits than its factorization.

22936905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2478 (or 2472 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 22936905 is about 4789.2488972698. The cubic root of 22936905 is about 284.1264108612.

The spelling of 22936905 in words is "twenty-two million, nine hundred thirty-six thousand, nine hundred five".