22240330423 has 4 divisors (see below), whose sum is σ = 22240948408. Its totient is φ = 22239712440.

The previous prime is 22240330421. The next prime is 22240330439. The reversal of 22240330423 is 32403304222.

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 22240330423 - 2¹ = 22240330421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22240330421) 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, 251436 + ... + 328177.

It is an arithmetic number, because the mean of its divisors is an integer number (5560237102).

Almost surely, 2^22240330423 is an apocalyptic number.

22240330423 is a deficient number, since it is larger than the sum of its proper divisors (617985).

22240330423 is an equidigital number, since it uses as much as digits as its factorization.

22240330423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617984.

The product of its (nonzero) digits is 6912, while the sum is 25.

Adding to 22240330423 its reverse (32403304222), we get a palindrome (54643634645).

The spelling of 22240330423 in words is "twenty-two billion, two hundred forty million, three hundred thirty thousand, four hundred twenty-three".