22908528 has 80 divisors (see below), whose sum is σ = 69241600. Its totient is φ = 7231680.

The previous prime is 22908491. The next prime is 22908533. The reversal of 22908528 is 82580922.

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

It is a junction number, because it is equal to n+sod(n) for n = 22908492 and 22908501.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6813 + ... + 9603.

It is an arithmetic number, because the mean of its divisors is an integer number (865520).

Almost surely, 2^22908528 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 22908528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34620800).

22908528 is an abundant number, since it is smaller than the sum of its proper divisors (46333072).

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

22908528 is a wasteful number, since it uses less digits than its factorization.

22908528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2827 (or 2815 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 22908528 is about 4786.2854072861. The cubic root of 22908528 is about 284.0091910006.

It can be divided in two parts, 22908 and 528, that added together give a triangular number (23436 = T₂₁₆).

The spelling of 22908528 in words is "twenty-two million, nine hundred eight thousand, five hundred twenty-eight".