22407998 has 8 divisors (see below), whose sum is σ = 33806808. Its totient is φ = 11139064.

The previous prime is 22407971. The next prime is 22408019. The reversal of 22407998 is 89970422.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32036 + ... + 32727.

It is an arithmetic number, because the mean of its divisors is an integer number (4225851).

Almost surely, 2^22407998 is an apocalyptic number.

22407998 is a deficient number, since it is larger than the sum of its proper divisors (11398810).

22407998 is a wasteful number, since it uses less digits than its factorization.

22407998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64938.

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

The square root of 22407998 is about 4733.7086940368. The cubic root of 22407998 is about 281.9254954661.

The spelling of 22407998 in words is "twenty-two million, four hundred seven thousand, nine hundred ninety-eight".