22981338 has 24 divisors (see below), whose sum is σ = 50289876. Its totient is φ = 7584000.

The previous prime is 22981327. The next prime is 22981367. The reversal of 22981338 is 83318922.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 22781529 + 199809 = 4773^2 + 447^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4503 + ... + 8138.

Almost surely, 2^22981338 is an apocalyptic number.

22981338 is an abundant number, since it is smaller than the sum of its proper divisors (27308538).

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

22981338 is a wasteful number, since it uses less digits than its factorization.

22981338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12750 (or 12747 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 22981338 is about 4793.8854804845. The cubic root of 22981338 is about 284.3097608748.

The spelling of 22981338 in words is "twenty-two million, nine hundred eighty-one thousand, three hundred thirty-eight".