22536945 has 48 divisors (see below), whose sum is σ = 42144960. Its totient is φ = 11104128.

The previous prime is 22536937. The next prime is 22536971. The reversal of 22536945 is 54963522.

It is not a de Polignac number, because 22536945 - 2³ = 22536937 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 36459 + ... + 37071.

It is an arithmetic number, because the mean of its divisors is an integer number (878020).

Almost surely, 2^22536945 is an apocalyptic number.

It is an amenable number.

22536945 is a deficient number, since it is larger than the sum of its proper divisors (19608015).

22536945 is a wasteful number, since it uses less digits than its factorization.

22536945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686 (or 683 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 22536945 is about 4747.3092378736. The cubic root of 22536945 is about 282.4652422844.

The spelling of 22536945 in words is "twenty-two million, five hundred thirty-six thousand, nine hundred forty-five".