22990938 has 16 divisors (see below), whose sum is σ = 47981376. Its totient is φ = 7330400.

The previous prime is 22990927. The next prime is 22990951. The reversal of 22990938 is 83909922.

It is a self number, because there is not a number n which added to its sum of digits gives 22990938.

It is an unprimeable number.

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, 83163 + ... + 83438.

It is an arithmetic number, because the mean of its divisors is an integer number (2998836).

Almost surely, 2^22990938 is an apocalyptic number.

22990938 is an abundant number, since it is smaller than the sum of its proper divisors (24990438).

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

22990938 is a wasteful number, since it uses less digits than its factorization.

22990938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166629.

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 22990938 is about 4794.8866514236. The cubic root of 22990938 is about 284.3493436259.

The spelling of 22990938 in words is "twenty-two million, nine hundred ninety thousand, nine hundred thirty-eight".