22921794 has 24 divisors (see below), whose sum is σ = 56759040. Its totient is φ = 6549048.

The previous prime is 22921793. The next prime is 22921799. The reversal of 22921794 is 49712922.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22921793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90834 + ... + 91085.

It is an arithmetic number, because the mean of its divisors is an integer number (2364960).

Almost surely, 2^22921794 is an apocalyptic number.

22921794 is an abundant number, since it is smaller than the sum of its proper divisors (33837246).

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

22921794 is a wasteful number, since it uses less digits than its factorization.

22921794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181934 (or 181931 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 22921794 is about 4787.6710413311. The cubic root of 22921794 is about 284.0640023048.

The spelling of 22921794 in words is "twenty-two million, nine hundred twenty-one thousand, seven hundred ninety-four".