22492920 has 32 divisors (see below), whose sum is σ = 67479120. Its totient is φ = 5998080.

The previous prime is 22492909. The next prime is 22492927. The reversal of 22492920 is 2929422.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22492927) 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, 93601 + ... + 93840.

Almost surely, 2^22492920 is an apocalyptic number.

22492920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22492920 is an abundant number, since it is smaller than the sum of its proper divisors (44986200).

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

22492920 is a wasteful number, since it uses less digits than its factorization.

22492920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187455 (or 187451 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 22492920 is about 4742.6701340068. The cubic root of 22492920 is about 282.2811942908.

The spelling of 22492920 in words is "twenty-two million, four hundred ninety-two thousand, nine hundred twenty".