23440423443422 has 16 divisors (see below), whose sum is σ = 35412777960192. Its totient is φ = 11636312226840.

The previous prime is 23440423443421. The next prime is 23440423443427. The reversal of 23440423443422 is 22434432404432.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 23440423443422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23440423443421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36708758 + ... + 37341849.

It is an arithmetic number, because the mean of its divisors is an integer number (2213298622512).

Almost surely, 2^{23440423443422} is an apocalyptic number.

23440423443422 is a deficient number, since it is larger than the sum of its proper divisors (11972354516770).

23440423443422 is a wasteful number, since it uses less digits than its factorization.

23440423443422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74051743.

The product of its (nonzero) digits is 1769472, while the sum is 41.

Adding to 23440423443422 its reverse (22434432404432), we get a palindrome (45874855847854).

The spelling of 23440423443422 in words is "twenty-three trillion, four hundred forty billion, four hundred twenty-three million, four hundred forty-three thousand, four hundred twenty-two".