22289992 has 48 divisors (see below), whose sum is σ = 45976320. Its totient is φ = 10118400.

The previous prime is 22289989. The next prime is 22289999. The reversal of 22289992 is 29998222.

It is not an unprimeable number, because it can be changed into a prime (22289999) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71517 + ... + 71827.

It is an arithmetic number, because the mean of its divisors is an integer number (957840).

Almost surely, 2^22289992 is an apocalyptic number.

It is an amenable number.

22289992 is an abundant number, since it is smaller than the sum of its proper divisors (23686328).

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

22289992 is a wasteful number, since it uses less digits than its factorization.

22289992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382 (or 361 counting only the distinct ones).

The product of its digits is 93312, while the sum is 43.

The square root of 22289992 is about 4721.2278064080. The cubic root of 22289992 is about 281.4297279548.

The spelling of 22289992 in words is "twenty-two million, two hundred eighty-nine thousand, nine hundred ninety-two".