22979490 has 16 divisors (see below), whose sum is σ = 55150848. Its totient is φ = 6127856.

The previous prime is 22979471. The next prime is 22979491. The reversal of 22979490 is 9497922.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22979491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 382962 + ... + 383021.

It is an arithmetic number, because the mean of its divisors is an integer number (3446928).

Almost surely, 2^22979490 is an apocalyptic number.

22979490 is an abundant number, since it is smaller than the sum of its proper divisors (32171358).

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

22979490 is a wasteful number, since it uses less digits than its factorization.

22979490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765993.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 22979490 is about 4793.6927310790. The cubic root of 22979490 is about 284.3021399300.

The spelling of 22979490 in words is "twenty-two million, nine hundred seventy-nine thousand, four hundred ninety".