22407979 has 8 divisors (see below), whose sum is σ = 24483888. Its totient is φ = 20338560.

The previous prime is 22407971. The next prime is 22408019. The reversal of 22407979 is 97970422.

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

It is not a de Polignac number, because 22407979 - 2³ = 22407971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22407971) 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, 8239 + ... + 10615.

It is an arithmetic number, because the mean of its divisors is an integer number (3060486).

Almost surely, 2^22407979 is an apocalyptic number.

22407979 is a deficient number, since it is larger than the sum of its proper divisors (2075909).

22407979 is a wasteful number, since it uses less digits than its factorization.

22407979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3245.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 22407979 is about 4733.7066871533. The cubic root of 22407979 is about 281.9254157834.

The spelling of 22407979 in words is "twenty-two million, four hundred seven thousand, nine hundred seventy-nine".