22407899 has 4 divisors (see below), whose sum is σ = 22424136. Its totient is φ = 22391664.

The previous prime is 22407881. The next prime is 22407937. The reversal of 22407899 is 99870422.

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 22407899 - 2⁸ = 22407643 is a prime.

It is a super-2 number, since 2×22407899² = 1004227875188402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22407809) 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, 5834 + ... + 8879.

It is an arithmetic number, because the mean of its divisors is an integer number (5606034).

Almost surely, 2^22407899 is an apocalyptic number.

22407899 is a deficient number, since it is larger than the sum of its proper divisors (16237).

22407899 is a wasteful number, since it uses less digits than its factorization.

22407899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16236.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 22407899 is about 4733.6982371081. The cubic root of 22407899 is about 281.9250802770.

The spelling of 22407899 in words is "twenty-two million, four hundred seven thousand, eight hundred ninety-nine".