22522918 has 8 divisors (see below), whose sum is σ = 36855720. Its totient is φ = 10237680.

The previous prime is 22522897. The next prime is 22522919. The reversal of 22522918 is 81922522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 22522918.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22522919) 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 3 ways as a sum of consecutive naturals, for example, 511863 + ... + 511906.

It is an arithmetic number, because the mean of its divisors is an integer number (4606965).

Almost surely, 2^22522918 is an apocalyptic number.

22522918 is a deficient number, since it is larger than the sum of its proper divisors (14332802).

22522918 is a wasteful number, since it uses less digits than its factorization.

22522918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023782.

The product of its digits is 5760, while the sum is 31.

The square root of 22522918 is about 4745.8316447173. The cubic root of 22522918 is about 282.4066279772.

The spelling of 22522918 in words is "twenty-two million, five hundred twenty-two thousand, nine hundred eighteen".