22921902 has 24 divisors (see below), whose sum is σ = 49772736. Its totient is φ = 7623936.

The previous prime is 22921897. The next prime is 22921903. The reversal of 22921902 is 20912922.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22921903) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9283 + ... + 11489.

It is an arithmetic number, because the mean of its divisors is an integer number (2073864).

Almost surely, 2^22921902 is an apocalyptic number.

22921902 is an abundant number, since it is smaller than the sum of its proper divisors (26850834).

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

22921902 is a wasteful number, since it uses less digits than its factorization.

22921902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2792 (or 2789 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 22921902 is about 4787.6823202882. The cubic root of 22921902 is about 284.0644484430.

The spelling of 22921902 in words is "twenty-two million, nine hundred twenty-one thousand, nine hundred two".