22908 has 24 divisors (see below), whose sum is σ = 56448. Its totient is φ = 7216.

The previous prime is 22907. The next prime is 22921. The reversal of 22908 is 80922.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22901) 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, 235 + ... + 317.

It is an arithmetic number, because the mean of its divisors is an integer number (2352).

2²²⁹⁰⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28224).

22908 is an abundant number, since it is smaller than the sum of its proper divisors (33540).

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

22908 is a wasteful number, since it uses less digits than its factorization.

22908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113 (or 111 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 22908 is about 151.3538899401. The cubic root of 22908 is about 28.4007009018.

The spelling of 22908 in words is "twenty-two thousand, nine hundred eight".