22449279 has 8 divisors (see below), whose sum is σ = 31507840. Its totient is φ = 14178456.

The previous prime is 22449257. The next prime is 22449283. The reversal of 22449279 is 97294422.

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

It is not a de Polignac number, because 22449279 - 2⁵ = 22449247 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 (22449209) 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, 196867 + ... + 196980.

It is an arithmetic number, because the mean of its divisors is an integer number (3938480).

Almost surely, 2^22449279 is an apocalyptic number.

22449279 is a deficient number, since it is larger than the sum of its proper divisors (9058561).

22449279 is a wasteful number, since it uses less digits than its factorization.

22449279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393869.

The product of its digits is 72576, while the sum is 39.

The square root of 22449279 is about 4738.0670109233. The cubic root of 22449279 is about 282.0985144465.

The spelling of 22449279 in words is "twenty-two million, four hundred forty-nine thousand, two hundred seventy-nine".