22402279 has 8 divisors (see below), whose sum is σ = 23269680. Its totient is φ = 21548736.

The previous prime is 22402271. The next prime is 22402283. The reversal of 22402279 is 97220422.

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 22402279 - 2³ = 22402271 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 (22402271) 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, 109 + ... + 6694.

It is an arithmetic number, because the mean of its divisors is an integer number (2908710).

Almost surely, 2^22402279 is an apocalyptic number.

22402279 is a deficient number, since it is larger than the sum of its proper divisors (867401).

22402279 is an equidigital number, since it uses as much as digits as its factorization.

22402279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6929.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 22402279 is about 4733.1045836744. The cubic root of 22402279 is about 281.9015089547.

The spelling of 22402279 in words is "twenty-two million, four hundred two thousand, two hundred seventy-nine".