22513984 has 28 divisors (see below), whose sum is σ = 47306484. Its totient is φ = 10594304.

The previous prime is 22513951. The next prime is 22514021. The reversal of 22513984 is 48931522.

It can be written as a sum of positive squares in 2 ways, for example, as 19009600 + 3504384 = 4360^2 + 1872^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9259 + ... + 11434.

Almost surely, 2^22513984 is an apocalyptic number.

It is an amenable number.

22513984 is an abundant number, since it is smaller than the sum of its proper divisors (24792500).

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

22513984 is a wasteful number, since it uses less digits than its factorization.

22513984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20722 (or 20712 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The square root of 22513984 is about 4744.8903043168. The cubic root of 22513984 is about 282.3692829866.

The spelling of 22513984 in words is "twenty-two million, five hundred thirteen thousand, nine hundred eighty-four".