22540632 has 16 divisors (see below), whose sum is σ = 56351640. Its totient is φ = 7513536.

The previous prime is 22540619. The next prime is 22540649. The reversal of 22540632 is 23604522.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 939193 = 22540632 / (2 + 2 + 5 + 4 + 0 + 6 + 3 + 2).

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, 469573 + ... + 469620.

Almost surely, 2^22540632 is an apocalyptic number.

It is an amenable number.

22540632 is an abundant number, since it is smaller than the sum of its proper divisors (33811008).

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

22540632 is a wasteful number, since it uses less digits than its factorization.

22540632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939202 (or 939198 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 22540632 is about 4747.6975472328. The cubic root of 22540632 is about 282.4806450310.

The spelling of 22540632 in words is "twenty-two million, five hundred forty thousand, six hundred thirty-two".