22922491 has 4 divisors (see below), whose sum is σ = 22932072. Its totient is φ = 22912912.

The previous prime is 22922413. The next prime is 22922507. The reversal of 22922491 is 19422922.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 22922491 - 2⁹ = 22921979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22922401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2175 + ... + 7111.

It is an arithmetic number, because the mean of its divisors is an integer number (5733018).

Almost surely, 2^22922491 is an apocalyptic number.

22922491 is a deficient number, since it is larger than the sum of its proper divisors (9581).

22922491 is an equidigital number, since it uses as much as digits as its factorization.

22922491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9580.

The product of its digits is 5184, while the sum is 31.

The square root of 22922491 is about 4787.7438319108. The cubic root of 22922491 is about 284.0668815239.

The spelling of 22922491 in words is "twenty-two million, nine hundred twenty-two thousand, four hundred ninety-one".