22979900 has 18 divisors (see below), whose sum is σ = 49866600. Its totient is φ = 9191920.

The previous prime is 22979893. The next prime is 22979909. The reversal of 22979900 is 997922.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22979909) 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, 114800 + ... + 114999.

Almost surely, 2^22979900 is an apocalyptic number.

22979900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22979900 is an abundant number, since it is smaller than the sum of its proper divisors (26886700).

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

22979900 is a wasteful number, since it uses less digits than its factorization.

22979900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229813 (or 229806 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 22979900 is about 4793.7354954148. The cubic root of 22979900 is about 284.3038307593.

The spelling of 22979900 in words is "twenty-two million, nine hundred seventy-nine thousand, nine hundred".