22888528 has 40 divisors (see below), whose sum is σ = 50574888. Its totient is φ = 9940992.

The previous prime is 22888517. The next prime is 22888529. The reversal of 22888528 is 82588822.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 685584 + 22202944 = 828^2 + 4712^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22888529) 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, 300 + ... + 6772.

Almost surely, 2^22888528 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22888528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25287444).

22888528 is an abundant number, since it is smaller than the sum of its proper divisors (27686360).

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

22888528 is a wasteful number, since it uses less digits than its factorization.

22888528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6511 (or 6505 counting only the distinct ones).

The product of its digits is 163840, while the sum is 43.

The square root of 22888528 is about 4784.1956481733. The cubic root of 22888528 is about 283.9265167286.

It can be divided in two parts, 2288 and 8528, that added together give a square (10816 = 104²).

The spelling of 22888528 in words is "twenty-two million, eight hundred eighty-eight thousand, five hundred twenty-eight".