22598538 has 16 divisors (see below), whose sum is σ = 45372096. Its totient is φ = 7503680.

The previous prime is 22598533. The next prime is 22598539. The reversal of 22598538 is 83589522.

It is a self number, because there is not a number n which added to its sum of digits gives 22598538.

It is not an unprimeable number, because it can be changed into a prime (22598533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5583 + ... + 8738.

It is an arithmetic number, because the mean of its divisors is an integer number (2835756).

Almost surely, 2^22598538 is an apocalyptic number.

22598538 is an abundant number, since it is smaller than the sum of its proper divisors (22773558).

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

22598538 is a wasteful number, since it uses less digits than its factorization.

22598538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14589.

The product of its digits is 172800, while the sum is 42.

The square root of 22598538 is about 4753.7919601093. The cubic root of 22598538 is about 282.7223320887.

The spelling of 22598538 in words is "twenty-two million, five hundred ninety-eight thousand, five hundred thirty-eight".