22642199 has 4 divisors (see below), whose sum is σ = 22749720. Its totient is φ = 22534680.

The previous prime is 22642177. The next prime is 22642201. The reversal of 22642199 is 99124622.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22642199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22642159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53444 + ... + 53865.

It is an arithmetic number, because the mean of its divisors is an integer number (5687430).

Almost surely, 2^22642199 is an apocalyptic number.

22642199 is a deficient number, since it is larger than the sum of its proper divisors (107521).

22642199 is a wasteful number, since it uses less digits than its factorization.

22642199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107520.

The product of its digits is 15552, while the sum is 35.

The square root of 22642199 is about 4758.3819728979. The cubic root of 22642199 is about 282.9042907424.

The spelling of 22642199 in words is "twenty-two million, six hundred forty-two thousand, one hundred ninety-nine".