22680528 has 80 divisors (see below), whose sum is σ = 66454080. Its totient is φ = 6607872.

The previous prime is 22680521. The next prime is 22680529. The reversal of 22680528 is 82508622.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22680521) 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 15 ways as a sum of consecutive naturals, for example, 10900 + ... + 12812.

It is an arithmetic number, because the mean of its divisors is an integer number (830676).

Almost surely, 2^22680528 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 22680528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33227040).

22680528 is an abundant number, since it is smaller than the sum of its proper divisors (43773552).

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

22680528 is a wasteful number, since it uses less digits than its factorization.

22680528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1956 (or 1950 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 22680528 is about 4762.4077943830. The cubic root of 22680528 is about 283.0638354002.

The spelling of 22680528 in words is "twenty-two million, six hundred eighty thousand, five hundred twenty-eight".