22530443 has 12 divisors (see below), whose sum is σ = 24893904. Its totient is φ = 20270400.

The previous prime is 22530379. The next prime is 22530449. The reversal of 22530443 is 34403522.

It is not a de Polignac number, because 22530443 - 2⁶ = 22530379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22530449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21338 + ... + 22368.

It is an arithmetic number, because the mean of its divisors is an integer number (2074492).

Almost surely, 2^22530443 is an apocalyptic number.

22530443 is a deficient number, since it is larger than the sum of its proper divisors (2363461).

22530443 is a wasteful number, since it uses less digits than its factorization.

22530443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1126 (or 1085 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 22530443 is about 4746.6243794933. The cubic root of 22530443 is about 282.4380755491.

Adding to 22530443 its reverse (34403522), we get a palindrome (56933965).

The spelling of 22530443 in words is "twenty-two million, five hundred thirty thousand, four hundred forty-three".