22089700 has 18 divisors (see below), whose sum is σ = 47934866. Its totient is φ = 8835840.

The previous prime is 22089667. The next prime is 22089707. The reversal of 22089700 is 798022.

It can be written as a sum of positive squares in 3 ways, for example, as 18496 + 22071204 = 136^2 + 4698^2 .

It is not an unprimeable number, because it can be changed into a prime (22089707) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 110349 + ... + 110548.

Almost surely, 2^22089700 is an apocalyptic number.

22089700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22089700 is an abundant number, since it is smaller than the sum of its proper divisors (25845166).

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

22089700 is a wasteful number, since it uses less digits than its factorization.

22089700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220911 (or 220904 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 22089700 is about 4699.9680849980. The cubic root of 22089700 is about 280.5842392803.

The spelling of 22089700 in words is "twenty-two million, eighty-nine thousand, seven hundred".