22445880 has 32 divisors (see below), whose sum is σ = 67338000. Its totient is φ = 5985536.

The previous prime is 22445867. The next prime is 22445881. The reversal of 22445880 is 8854422.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22445881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93405 + ... + 93644.

Almost surely, 2^22445880 is an apocalyptic number.

22445880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22445880 is an abundant number, since it is smaller than the sum of its proper divisors (44892120).

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

22445880 is a wasteful number, since it uses less digits than its factorization.

22445880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187063 (or 187059 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 33.

The square root of 22445880 is about 4737.7083067660. The cubic root of 22445880 is about 282.0842764058.

The spelling of 22445880 in words is "twenty-two million, four hundred forty-five thousand, eight hundred eighty".