22162920 has 64 divisors (see below), whose sum is σ = 71608320. Its totient is φ = 5455104.

The previous prime is 22162891. The next prime is 22162927. The reversal of 22162920 is 2926122.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (22162927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5544 + ... + 8663.

It is an arithmetic number, because the mean of its divisors is an integer number (1118880).

Almost surely, 2^22162920 is an apocalyptic number.

22162920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22162920 is an abundant number, since it is smaller than the sum of its proper divisors (49445400).

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

22162920 is a wasteful number, since it uses less digits than its factorization.

22162920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14234 (or 14230 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 22162920 is about 4707.7510554404. The cubic root of 22162920 is about 280.8939118193.

The spelling of 22162920 in words is "twenty-two million, one hundred sixty-two thousand, nine hundred twenty".