22479943 has 4 divisors (see below), whose sum is σ = 22494168. Its totient is φ = 22465720.

The previous prime is 22479937. The next prime is 22479953. The reversal of 22479943 is 34997422.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22479943 - 2⁵ = 22479911 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22479896 and 22479905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22479913) 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 3 ways as a sum of consecutive naturals, for example, 4396 + ... + 8017.

It is an arithmetic number, because the mean of its divisors is an integer number (5623542).

Almost surely, 2^22479943 is an apocalyptic number.

22479943 is a deficient number, since it is larger than the sum of its proper divisors (14225).

22479943 is a wasteful number, since it uses less digits than its factorization.

22479943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14224.

The product of its digits is 108864, while the sum is 40.

The square root of 22479943 is about 4741.3018254484. The cubic root of 22479943 is about 282.2268976832.

The spelling of 22479943 in words is "twenty-two million, four hundred seventy-nine thousand, nine hundred forty-three".