22660528 has 40 divisors (see below), whose sum is σ = 48211200. Its totient is φ = 10232640.

The previous prime is 22660523. The next prime is 22660529. The reversal of 22660528 is 82506622.

It is a self number, because there is not a number n which added to its sum of digits gives 22660528.

It is not an unprimeable number, because it can be changed into a prime (22660523) 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, 34701 + ... + 35347.

It is an arithmetic number, because the mean of its divisors is an integer number (1205280).

Almost surely, 2^22660528 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 22660528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24105600).

22660528 is an abundant number, since it is smaller than the sum of its proper divisors (25550672).

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

22660528 is a wasteful number, since it uses less digits than its factorization.

22660528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865 (or 859 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 22660528 is about 4760.3075530894. The cubic root of 22660528 is about 282.9806077436.

The spelling of 22660528 in words is "twenty-two million, six hundred sixty thousand, five hundred twenty-eight".