22109946 has 16 divisors (see below), whose sum is σ = 46142784. Its totient is φ = 7049504.

The previous prime is 22109929. The next prime is 22109951. The reversal of 22109946 is 64990122.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79971 + ... + 80246.

It is an arithmetic number, because the mean of its divisors is an integer number (2883924).

Almost surely, 2^22109946 is an apocalyptic number.

22109946 is an abundant number, since it is smaller than the sum of its proper divisors (24032838).

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

22109946 is a wasteful number, since it uses less digits than its factorization.

22109946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160245.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 22109946 is about 4702.1214361180. The cubic root of 22109946 is about 280.6699349343.

The spelling of 22109946 in words is "twenty-two million, one hundred nine thousand, nine hundred forty-six".