22875918 has 32 divisors (see below), whose sum is σ = 49481376. Its totient is φ = 7008768.

The previous prime is 22875917. The next prime is 22875947. The reversal of 22875918 is 81957822.

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 22875918.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22875911) 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 in 15 ways as a sum of consecutive naturals, for example, 23946 + ... + 24882.

It is an arithmetic number, because the mean of its divisors is an integer number (1546293).

Almost surely, 2^22875918 is an apocalyptic number.

22875918 is an abundant number, since it is smaller than the sum of its proper divisors (26605458).

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

22875918 is a wasteful number, since it uses less digits than its factorization.

22875918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1268.

The product of its digits is 80640, while the sum is 42.

The square root of 22875918 is about 4782.8775857218. The cubic root of 22875918 is about 283.8743658420.

The spelling of 22875918 in words is "twenty-two million, eight hundred seventy-five thousand, nine hundred eighteen".