22537116 has 120 divisors (see below), whose sum is σ = 71012480. Its totient is φ = 6088608.

The previous prime is 22537091. The next prime is 22537129. The reversal of 22537116 is 61173522.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 22537116.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 42831 + ... + 43353.

Almost surely, 2^22537116 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22537116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35506240).

22537116 is an abundant number, since it is smaller than the sum of its proper divisors (48475364).

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

22537116 is a wasteful number, since it uses less digits than its factorization.

22537116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565 (or 554 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 22537116 is about 4747.3272480418. The cubic root of 22537116 is about 282.4659566882.

The spelling of 22537116 in words is "twenty-two million, five hundred thirty-seven thousand, one hundred sixteen".