22188954 has 16 divisors (see below), whose sum is σ = 45460800. Its totient is φ = 7215840.

The previous prime is 22188953. The next prime is 22189001. The reversal of 22188954 is 45988122.

It is a super-2 number, since 2×22188954² = 984699359228232, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22188953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44854 + ... + 45345.

It is an arithmetic number, because the mean of its divisors is an integer number (2841300).

Almost surely, 2^22188954 is an apocalyptic number.

22188954 is an abundant number, since it is smaller than the sum of its proper divisors (23271846).

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

22188954 is a wasteful number, since it uses less digits than its factorization.

22188954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90245.

The product of its digits is 46080, while the sum is 39.

The square root of 22188954 is about 4710.5152584404. The cubic root of 22188954 is about 281.0038541705.

The spelling of 22188954 in words is "twenty-two million, one hundred eighty-eight thousand, nine hundred fifty-four".