22115788 has 48 divisors (see below), whose sum is σ = 42517440. Its totient is φ = 10036224.

The previous prime is 22115783. The next prime is 22115831. The reversal of 22115788 is 88751122.

Its product of digits (8960) is a multiple of the sum of its prime divisors (224).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22115783) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 248448 + ... + 248536.

It is an arithmetic number, because the mean of its divisors is an integer number (885780).

Almost surely, 2^22115788 is an apocalyptic number.

It is an amenable number.

22115788 is a deficient number, since it is larger than the sum of its proper divisors (20401652).

22115788 is a wasteful number, since it uses less digits than its factorization.

22115788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226 (or 224 counting only the distinct ones).

The product of its digits is 8960, while the sum is 34.

The square root of 22115788 is about 4702.7426040556. The cubic root of 22115788 is about 280.6946527599.

The spelling of 22115788 in words is "twenty-two million, one hundred fifteen thousand, seven hundred eighty-eight".