22258988 has 6 divisors (see below), whose sum is σ = 38953236. Its totient is φ = 11129492.

The previous prime is 22258981. The next prime is 22259033. The reversal of 22258988 is 88985222.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (22258981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2782370 + ... + 2782377.

It is an arithmetic number, because the mean of its divisors is an integer number (6492206).

Almost surely, 2^22258988 is an apocalyptic number.

It is an amenable number.

22258988 is a deficient number, since it is larger than the sum of its proper divisors (16694248).

22258988 is a wasteful number, since it uses less digits than its factorization.

22258988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5564751 (or 5564749 counting only the distinct ones).

The product of its digits is 184320, while the sum is 44.

The square root of 22258988 is about 4717.9431959276. The cubic root of 22258988 is about 281.2991836290.

The spelling of 22258988 in words is "twenty-two million, two hundred fifty-eight thousand, nine hundred eighty-eight".