22288804 has 24 divisors (see below), whose sum is σ = 39818520. Its totient is φ = 10914816.

The previous prime is 22288793. The next prime is 22288807. The reversal of 22288804 is 40888222.

It can be written as a sum of positive squares in 4 ways, for example, as 4665600 + 17623204 = 2160^2 + 4198^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22288804.

It is not an unprimeable number, because it can be changed into a prime (22288807) 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, 48544 + ... + 49000.

It is an arithmetic number, because the mean of its divisors is an integer number (1659105).

Almost surely, 2^22288804 is an apocalyptic number.

It is an amenable number.

22288804 is a deficient number, since it is larger than the sum of its proper divisors (17529716).

22288804 is a wasteful number, since it uses less digits than its factorization.

22288804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687 (or 685 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 34.

The square root of 22288804 is about 4721.1019900019. The cubic root of 22288804 is about 281.4247280359.

The spelling of 22288804 in words is "twenty-two million, two hundred eighty-eight thousand, eight hundred four".