22872788 has 12 divisors (see below), whose sum is σ = 40157460. Its totient is φ = 11399232.

The previous prime is 22872757. The next prime is 22872797. The reversal of 22872788 is 88727822.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6210064 + 16662724 = 2492^2 + 4082^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7883 + ... + 10386.

It is an arithmetic number, because the mean of its divisors is an integer number (3346455).

Almost surely, 2^22872788 is an apocalyptic number.

It is an amenable number.

22872788 is a deficient number, since it is larger than the sum of its proper divisors (17284672).

22872788 is a wasteful number, since it uses less digits than its factorization.

22872788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18586 (or 18584 counting only the distinct ones).

The product of its digits is 200704, while the sum is 44.

The square root of 22872788 is about 4782.5503656522. The cubic root of 22872788 is about 283.8614182044.

The spelling of 22872788 in words is "twenty-two million, eight hundred seventy-two thousand, seven hundred eighty-eight".