22875528 has 64 divisors (see below), whose sum is σ = 62112960. Its totient is φ = 6978816.

The previous prime is 22875481. The next prime is 22875529. The reversal of 22875528 is 82557822.

It is a happy number.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (22875529) 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, 48751 + ... + 49217.

It is an arithmetic number, because the mean of its divisors is an integer number (970515).

Almost surely, 2^22875528 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 22875528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31056480).

22875528 is an abundant number, since it is smaller than the sum of its proper divisors (39237432).

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

22875528 is a wasteful number, since it uses less digits than its factorization.

22875528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646 (or 642 counting only the distinct ones).

The product of its digits is 89600, while the sum is 39.

The square root of 22875528 is about 4782.8368151130. The cubic root of 22875528 is about 283.8727526225.

The spelling of 22875528 in words is "twenty-two million, eight hundred seventy-five thousand, five hundred twenty-eight".