22318906 has 16 divisors (see below), whose sum is σ = 34193664. Its totient is φ = 10923264.

The previous prime is 22318897. The next prime is 22318927. The reversal of 22318906 is 60981322.

It is a super-3 number, since 3×22318906³ (a number of 23 digits) contains 333 as substring.

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, 25431 + ... + 26293.

It is an arithmetic number, because the mean of its divisors is an integer number (2137104).

Almost surely, 2^22318906 is an apocalyptic number.

22318906 is a deficient number, since it is larger than the sum of its proper divisors (11874758).

22318906 is a wasteful number, since it uses less digits than its factorization.

22318906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1125.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 22318906 is about 4724.2889412059. The cubic root of 22318906 is about 281.5513631593.

The spelling of 22318906 in words is "twenty-two million, three hundred eighteen thousand, nine hundred six".