22389956 has 12 divisors (see below), whose sum is σ = 39922092. Its totient is φ = 10983648.

The previous prime is 22389937. The next prime is 22389959. The reversal of 22389956 is 65998322.

It can be written as a sum of positive squares in 2 ways, for example, as 17505856 + 4884100 = 4184^2 + 2210^2 .

It is not an unprimeable number, because it can be changed into a prime (22389959) 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 3 ways as a sum of consecutive naturals, for example, 52595 + ... + 53018.

It is an arithmetic number, because the mean of its divisors is an integer number (3326841).

Almost surely, 2^22389956 is an apocalyptic number.

It is an amenable number.

22389956 is a deficient number, since it is larger than the sum of its proper divisors (17532136).

22389956 is a wasteful number, since it uses less digits than its factorization.

22389956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105670 (or 105668 counting only the distinct ones).

The product of its digits is 233280, while the sum is 44.

The square root of 22389956 is about 4731.8026163398. The cubic root of 22389956 is about 281.8498102048.

The spelling of 22389956 in words is "twenty-two million, three hundred eighty-nine thousand, nine hundred fifty-six".