22788878 has 16 divisors (see below), whose sum is σ = 39187584. Its totient is φ = 9736440.

The previous prime is 22788869. The next prime is 22788943. The reversal of 22788878 is 87888722.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2513 + ... + 7203.

It is an arithmetic number, because the mean of its divisors is an integer number (2449224).

Almost surely, 2^22788878 is an apocalyptic number.

22788878 is a deficient number, since it is larger than the sum of its proper divisors (16398706).

22788878 is a wasteful number, since it uses less digits than its factorization.

22788878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5047.

The product of its digits is 802816, while the sum is 50.

The square root of 22788878 is about 4773.7697891708. The cubic root of 22788878 is about 283.5138727870.

The spelling of 22788878 in words is "twenty-two million, seven hundred eighty-eight thousand, eight hundred seventy-eight".