13004444032 has 64 divisors (see below), whose sum is σ = 27463071600. Its totient is φ = 6112641024.

The previous prime is 13004444003. The next prime is 13004444041. The reversal of 13004444032 is 23044440031.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 13004443988 and 13004444006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2192623 + ... + 2198545.

Almost surely, 2^13004444032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13004444032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13731535800).

13004444032 is an abundant number, since it is smaller than the sum of its proper divisors (14458627568).

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

13004444032 is a wasteful number, since it uses less digits than its factorization.

13004444032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6963 (or 6951 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 13004444032 its reverse (23044440031), we get a palindrome (36048884063).

The spelling of 13004444032 in words is "thirteen billion, four million, four hundred forty-four thousand, thirty-two".