22434404423 has 4 divisors (see below), whose sum is σ = 22461144720. Its totient is φ = 22407664128.

The previous prime is 22434404393. The next prime is 22434404441. The reversal of 22434404423 is 32440443422.

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 22434404423 - 2⁶ = 22434404359 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22434404423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22434404483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13368890 + ... + 13370567.

It is an arithmetic number, because the mean of its divisors is an integer number (5615286180).

Almost surely, 2^22434404423 is an apocalyptic number.

22434404423 is a deficient number, since it is larger than the sum of its proper divisors (26740297).

22434404423 is an equidigital number, since it uses as much as digits as its factorization.

22434404423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26740296.

The product of its (nonzero) digits is 73728, while the sum is 32.

Adding to 22434404423 its reverse (32440443422), we get a palindrome (54874847845).

The spelling of 22434404423 in words is "twenty-two billion, four hundred thirty-four million, four hundred four thousand, four hundred twenty-three".