13423320444 has 48 divisors (see below), whose sum is σ = 32723228160. Its totient is φ = 4274614080.

The previous prime is 13423320437. The next prime is 13423320457. The reversal of 13423320444 is 44402332431.

It is a happy number.

13423320444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 196977 + ... + 256215.

It is an arithmetic number, because the mean of its divisors is an integer number (681733920).

Almost surely, 2^13423320444 is an apocalyptic number.

It is an amenable number.

13423320444 is an abundant number, since it is smaller than the sum of its proper divisors (19299907716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13423320444 is a wasteful number, since it uses less digits than its factorization.

13423320444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60090 (or 60088 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 13423320444 its reverse (44402332431), we get a palindrome (57825652875).

The spelling of 13423320444 in words is "thirteen billion, four hundred twenty-three million, three hundred twenty thousand, four hundred forty-four".