22133916 has 36 divisors (see below), whose sum is σ = 63943152. Its totient is φ = 6323904.

The previous prime is 22133899. The next prime is 22133921. The reversal of 22133916 is 61933122.

It is a tau number, because it is divible by the number of its divisors (36).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 22133916.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 43665 + ... + 44168.

Almost surely, 2^22133916 is an apocalyptic number.

It is an amenable number.

22133916 is an abundant number, since it is smaller than the sum of its proper divisors (41809236).

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

22133916 is a wasteful number, since it uses less digits than its factorization.

22133916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87850 (or 87845 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

The square root of 22133916 is about 4704.6695952001. The cubic root of 22133916 is about 280.7713256326.

The spelling of 22133916 in words is "twenty-two million, one hundred thirty-three thousand, nine hundred sixteen".