22538099 has 4 divisors (see below), whose sum is σ = 22553640. Its totient is φ = 22522560.

The previous prime is 22538081. The next prime is 22538111. The reversal of 22538099 is 99083522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22538099 - 2¹⁶ = 22472563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22538029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5342 + ... + 8579.

It is an arithmetic number, because the mean of its divisors is an integer number (5638410).

Almost surely, 2^22538099 is an apocalyptic number.

22538099 is a deficient number, since it is larger than the sum of its proper divisors (15541).

22538099 is a wasteful number, since it uses less digits than its factorization.

22538099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15540.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 22538099 is about 4747.4307788529. The cubic root of 22538099 is about 282.4700633952.

The spelling of 22538099 in words is "twenty-two million, five hundred thirty-eight thousand, ninety-nine".