22139088 has 40 divisors (see below), whose sum is σ = 57892128. Its totient is φ = 7289472.

The previous prime is 22139081. The next prime is 22139119. The reversal of 22139088 is 88093122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22139081) 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, 1206 + ... + 6762.

Almost surely, 2^22139088 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 22139088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28946064).

22139088 is an abundant number, since it is smaller than the sum of its proper divisors (35753040).

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

22139088 is a wasteful number, since it uses less digits than its factorization.

22139088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5651 (or 5645 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 22139088 is about 4705.2192297490. The cubic root of 22139088 is about 280.7931930721.

The spelling of 22139088 in words is "twenty-two million, one hundred thirty-nine thousand, eighty-eight".