22825188 has 36 divisors (see below), whose sum is σ = 57936060. Its totient is φ = 7576896.

The previous prime is 22825181. The next prime is 22825193. The reversal of 22825188 is 88152822.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2683044 + 20142144 = 1638^2 + 4488^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (22825181) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 8506 + ... + 10862.

It is an arithmetic number, because the mean of its divisors is an integer number (1609335).

Almost surely, 2^22825188 is an apocalyptic number.

It is an amenable number.

22825188 is an abundant number, since it is smaller than the sum of its proper divisors (35110872).

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

22825188 is a wasteful number, since it uses less digits than its factorization.

22825188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2636 (or 2631 counting only the distinct ones).

The product of its digits is 20480, while the sum is 36.

The square root of 22825188 is about 4777.5713495457. The cubic root of 22825188 is about 283.6643690968.

The spelling of 22825188 in words is "twenty-two million, eight hundred twenty-five thousand, one hundred eighty-eight".