22442424423 has 4 divisors (see below), whose sum is σ = 29923232568. Its totient is φ = 14961616280.

The previous prime is 22442424391. The next prime is 22442424437. The reversal of 22442424423 is 32442424422.

It is a happy number.

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 22442424423 - 2⁵ = 22442424391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22442424493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3740404068 + ... + 3740404073.

It is an arithmetic number, because the mean of its divisors is an integer number (7480808142).

Almost surely, 2^22442424423 is an apocalyptic number.

22442424423 is a deficient number, since it is larger than the sum of its proper divisors (7480808145).

22442424423 is an equidigital number, since it uses as much as digits as its factorization.

22442424423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7480808144.

The product of its digits is 98304, while the sum is 33.

Adding to 22442424423 its reverse (32442424422), we get a palindrome (54884848845).

Subtracting 22442424423 from its reverse (32442424422), we obtain a palindrome (9999999999).

The spelling of 22442424423 in words is "twenty-two billion, four hundred forty-two million, four hundred twenty-four thousand, four hundred twenty-three".