22564938 has 32 divisors (see below), whose sum is σ = 50383872. Its totient is φ = 6678000.

The previous prime is 22564921. The next prime is 22564943. The reversal of 22564938 is 83946522.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22564896 and 22564905.

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, 1138 + ... + 6813.

It is an arithmetic number, because the mean of its divisors is an integer number (1574496).

Almost surely, 2^22564938 is an apocalyptic number.

22564938 is an abundant number, since it is smaller than the sum of its proper divisors (27818934).

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

22564938 is a wasteful number, since it uses less digits than its factorization.

22564938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8010.

The product of its digits is 103680, while the sum is 39.

The square root of 22564938 is about 4750.2566246467. The cubic root of 22564938 is about 282.5821433406.

The spelling of 22564938 in words is "twenty-two million, five hundred sixty-four thousand, nine hundred thirty-eight".