22484538 has 12 divisors (see below), whose sum is σ = 48716538. Its totient is φ = 7494840.

The previous prime is 22484533. The next prime is 22484549. The reversal of 22484538 is 83548422.

It can be written as a sum of positive squares in only one way, i.e., 22439169 + 45369 = 4737^2 + 213^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22484533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 624553 + ... + 624588.

Almost surely, 2^22484538 is an apocalyptic number.

22484538 is an abundant number, since it is smaller than the sum of its proper divisors (26232000).

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

22484538 is a wasteful number, since it uses less digits than its factorization.

22484538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1249149 (or 1249146 counting only the distinct ones).

The product of its digits is 61440, while the sum is 36.

The square root of 22484538 is about 4741.7863722441. The cubic root of 22484538 is about 282.2461258495.

It can be divided in two parts, 2248 and 4538, that added together give a triangular number (6786 = T₁₁₆).

The spelling of 22484538 in words is "twenty-two million, four hundred eighty-four thousand, five hundred thirty-eight".