22288900 has 36 divisors (see below), whose sum is σ = 50916880. Its totient is φ = 8445600.

The previous prime is 22288897. The next prime is 22288913. The reversal of 22288900 is 988222.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3966 + ... + 7765.

Almost surely, 2^22288900 is an apocalyptic number.

22288900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22288900 is an abundant number, since it is smaller than the sum of its proper divisors (28627980).

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

22288900 is a wasteful number, since it uses less digits than its factorization.

22288900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11764 (or 11757 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 22288900 is about 4721.1121571087. The cubic root of 22288900 is about 281.4251320763.

The spelling of 22288900 in words is "twenty-two million, two hundred eighty-eight thousand, nine hundred".