22548920 has 16 divisors (see below), whose sum is σ = 50735160. Its totient is φ = 9019552.

The previous prime is 22548913. The next prime is 22548941. The reversal of 22548920 is 2984522.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 281822 + ... + 281901.

Almost surely, 2^22548920 is an apocalyptic number.

22548920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22548920 is an abundant number, since it is smaller than the sum of its proper divisors (28186240).

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

22548920 is a wasteful number, since it uses less digits than its factorization.

22548920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563734 (or 563730 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 22548920 is about 4748.5703111568. The cubic root of 22548920 is about 282.5152627042.

The spelling of 22548920 in words is "twenty-two million, five hundred forty-eight thousand, nine hundred twenty".