22652218 has 16 divisors (see below), whose sum is σ = 35965440. Its totient is φ = 10670400.

The previous prime is 22652209. The next prime is 22652233. The reversal of 22652218 is 81225622.

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, 5698 + ... + 8818.

It is an arithmetic number, because the mean of its divisors is an integer number (2247840).

Almost surely, 2^22652218 is an apocalyptic number.

22652218 is a deficient number, since it is larger than the sum of its proper divisors (13313222).

22652218 is a wasteful number, since it uses less digits than its factorization.

22652218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3333.

The product of its digits is 3840, while the sum is 28.

The square root of 22652218 is about 4759.4346302896. The cubic root of 22652218 is about 282.9460122514.

The spelling of 22652218 in words is "twenty-two million, six hundred fifty-two thousand, two hundred eighteen".