22955812 has 12 divisors (see below), whose sum is σ = 43824816. Its totient is φ = 10434440.

The previous prime is 22955789. The next prime is 22955813. The reversal of 22955812 is 21855922.

22955812 = T₂₇₈ + T₂₇₉ + ... + T₅₄₁.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (22955813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260818 + ... + 260905.

It is an arithmetic number, because the mean of its divisors is an integer number (3652068).

Almost surely, 2^22955812 is an apocalyptic number.

22955812 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22955812 is a deficient number, since it is larger than the sum of its proper divisors (20869004).

22955812 is a wasteful number, since it uses less digits than its factorization.

22955812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521738 (or 521736 counting only the distinct ones).

The product of its digits is 14400, while the sum is 34.

The square root of 22955812 is about 4791.2223909979. Note that the first 3 decimals coincide. The cubic root of 22955812 is about 284.2044583379.

The spelling of 22955812 in words is "twenty-two million, nine hundred fifty-five thousand, eight hundred twelve".