13044440032 has 48 divisors (see below), whose sum is σ = 27764562672. Its totient is φ = 5997035520.

The previous prime is 13044440027. The next prime is 13044440039. The reversal of 13044440032 is 23004444031.

It is a super-2 number, since 2×13044440032² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13044439979 and 13044440006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13044440039) 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, 45907 + ... + 167917.

It is an arithmetic number, because the mean of its divisors is an integer number (578428389).

Almost surely, 2^13044440032 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 13044440032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13882281336).

13044440032 is an abundant number, since it is smaller than the sum of its proper divisors (14720122640).

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

13044440032 is a wasteful number, since it uses less digits than its factorization.

13044440032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122291 (or 122283 counting only the distinct ones).

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

Adding to 13044440032 its reverse (23004444031), we get a palindrome (36048884063).

The spelling of 13044440032 in words is "thirteen billion, forty-four million, four hundred forty thousand, thirty-two".