22909844 has 6 divisors (see below), whose sum is σ = 40092234. Its totient is φ = 11454920.

The previous prime is 22909811. The next prime is 22909849. The reversal of 22909844 is 44890922.

It can be written as a sum of positive squares in only one way, i.e., 14730244 + 8179600 = 3838^2 + 2860^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22909798 and 22909807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22909849) 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 as a sum of consecutive naturals, namely, 2863727 + ... + 2863734.

It is an arithmetic number, because the mean of its divisors is an integer number (6682039).

Almost surely, 2^22909844 is an apocalyptic number.

It is an amenable number.

22909844 is a deficient number, since it is larger than the sum of its proper divisors (17182390).

22909844 is a wasteful number, since it uses less digits than its factorization.

22909844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5727465 (or 5727463 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 22909844 is about 4786.4228814429. The cubic root of 22909844 is about 284.0146292801.

The spelling of 22909844 in words is "twenty-two million, nine hundred nine thousand, eight hundred forty-four".