22804920 has 48 divisors (see below), whose sum is σ = 74117160. Its totient is φ = 6081216.

The previous prime is 22804919. The next prime is 22804927. The reversal of 22804920 is 2940822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22804927) 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, 31314 + ... + 32033.

Almost surely, 2^22804920 is an apocalyptic number.

22804920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22804920 is an abundant number, since it is smaller than the sum of its proper divisors (51312240).

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

22804920 is a wasteful number, since it uses less digits than its factorization.

22804920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63364 (or 63357 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 22804920 is about 4775.4497170424. The cubic root of 22804920 is about 283.5803827568.

The spelling of 22804920 in words is "twenty-two million, eight hundred four thousand, nine hundred twenty".