22530738 has 32 divisors (see below), whose sum is σ = 48130560. Its totient is φ = 7015680.

The previous prime is 22530727. The next prime is 22530757. The reversal of 22530738 is 83703522.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3306 + ... + 7482.

It is an arithmetic number, because the mean of its divisors is an integer number (1504080).

Almost surely, 2^22530738 is an apocalyptic number.

22530738 is an abundant number, since it is smaller than the sum of its proper divisors (25599822).

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

22530738 is a wasteful number, since it uses less digits than its factorization.

22530738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4242.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 22530738 is about 4746.6554541066. The cubic root of 22530738 is about 282.4393082349.

The spelling of 22530738 in words is "twenty-two million, five hundred thirty thousand, seven hundred thirty-eight".