22806945 has 48 divisors (see below), whose sum is σ = 47848320. Its totient is φ = 9810432.

The previous prime is 22806941. The next prime is 22806967. The reversal of 22806945 is 54960822.

It is a happy number.

It is not a de Polignac number, because 22806945 - 2² = 22806941 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22806941) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3226 + ... + 7484.

It is an arithmetic number, because the mean of its divisors is an integer number (996840).

Almost surely, 2^22806945 is an apocalyptic number.

It is an amenable number.

22806945 is an abundant number, since it is smaller than the sum of its proper divisors (25041375).

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

22806945 is a wasteful number, since it uses less digits than its factorization.

22806945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4294 (or 4291 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 22806945 is about 4775.6617342521. The cubic root of 22806945 is about 283.5887761689.

The spelling of 22806945 in words is "twenty-two million, eight hundred six thousand, nine hundred forty-five".