22331423 has 4 divisors (see below), whose sum is σ = 22358280. Its totient is φ = 22304568.

The previous prime is 22331401. The next prime is 22331453. The reversal of 22331423 is 32413322.

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 22331423 - 2²⁰ = 21282847 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22331395 and 22331404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22331453) 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, 12140 + ... + 13857.

It is an arithmetic number, because the mean of its divisors is an integer number (5589570).

Almost surely, 2^22331423 is an apocalyptic number.

22331423 is a deficient number, since it is larger than the sum of its proper divisors (26857).

22331423 is an equidigital number, since it uses as much as digits as its factorization.

22331423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26856.

The product of its digits is 864, while the sum is 20.

The square root of 22331423 is about 4725.6135051441. The cubic root of 22331423 is about 281.6039870021.

Adding to 22331423 its reverse (32413322), we get a palindrome (54744745).

The spelling of 22331423 in words is "twenty-two million, three hundred thirty-one thousand, four hundred twenty-three".