22479 has 8 divisors (see below), whose sum is σ = 30720. Its totient is φ = 14616.

The previous prime is 22469. The next prime is 22481. The reversal of 22479 is 97422.

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

It is not a de Polignac number, because 22479 - 2⁵ = 22447 is a prime.

22479 is a lucky number.

It is a plaindrome in base 10 and base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114 + ... + 240.

It is an arithmetic number, because the mean of its divisors is an integer number (3840).

2²²⁴⁷⁹ is an apocalyptic number.

22479 is a deficient number, since it is larger than the sum of its proper divisors (8241).

22479 is a wasteful number, since it uses less digits than its factorization.

22479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189.

The product of its digits is 1008, while the sum is 24.

The square root of 22479 is about 149.9299836590. The cubic root of 22479 is about 28.2222951296. Note that the first 4 decimals are identical.

It can be divided in two parts, 224 and 79, that added together give a palindrome (303).

The spelling of 22479 in words is "twenty-two thousand, four hundred seventy-nine".