22445899 has 8 divisors (see below), whose sum is σ = 27161568. Its totient is φ = 18107520.

The previous prime is 22445887. The next prime is 22445903. The reversal of 22445899 is 99854422.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22445899 - 2⁵ = 22445867 is a prime.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (22445809) 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, 94192 + ... + 94429.

It is an arithmetic number, because the mean of its divisors is an integer number (3395196).

Almost surely, 2^22445899 is an apocalyptic number.

22445899 is a deficient number, since it is larger than the sum of its proper divisors (4715669).

22445899 is a wasteful number, since it uses less digits than its factorization.

22445899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188645.

The product of its digits is 207360, while the sum is 43.

The square root of 22445899 is about 4737.7103119545. The cubic root of 22445899 is about 282.0843559987.

The spelling of 22445899 in words is "twenty-two million, four hundred forty-five thousand, eight hundred ninety-nine".