13323440032 has 96 divisors (see below), whose sum is σ = 30792666240. Its totient is φ = 5555589120.

The previous prime is 13323439999. The next prime is 13323440063. The reversal of 13323440032 is 23004432331.

It is a super-2 number, since 2×13323440032² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13323439979 and 13323440006.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3754483 + ... + 3758029.

It is an arithmetic number, because the mean of its divisors is an integer number (320756940).

Almost surely, 2^13323440032 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 13323440032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15396333120).

13323440032 is an abundant number, since it is smaller than the sum of its proper divisors (17469226208).

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

13323440032 is a wasteful number, since it uses less digits than its factorization.

13323440032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4014 (or 4006 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 13323440032 its reverse (23004432331), we get a palindrome (36327872363).

The spelling of 13323440032 in words is "thirteen billion, three hundred twenty-three million, four hundred forty thousand, thirty-two".