22938738 has 32 divisors (see below), whose sum is σ = 48522240. Its totient is φ = 7209360.

The previous prime is 22938731. The next prime is 22938749. The reversal of 22938738 is 83783922.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22938738.

It is not an unprimeable number, because it can be changed into a prime (22938731) 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 15 ways as a sum of consecutive naturals, for example, 35131 + ... + 35777.

It is an arithmetic number, because the mean of its divisors is an integer number (1516320).

Almost surely, 2^22938738 is an apocalyptic number.

22938738 is an abundant number, since it is smaller than the sum of its proper divisors (25583502).

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

22938738 is a wasteful number, since it uses less digits than its factorization.

22938738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982.

The product of its digits is 145152, while the sum is 42.

The square root of 22938738 is about 4789.4402595710. The cubic root of 22938738 is about 284.1339793023.

The spelling of 22938738 in words is "twenty-two million, nine hundred thirty-eight thousand, seven hundred thirty-eight".