13321232 has 40 divisors (see below), whose sum is σ = 27480384. Its totient is φ = 6241664.

The previous prime is 13321229. The next prime is 13321279. The reversal of 13321232 is 23212331.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 13321232.

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, 19163 + ... + 19845.

Almost surely, 2^13321232 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 13321232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13740192).

13321232 is an abundant number, since it is smaller than the sum of its proper divisors (14159152).

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

13321232 is a wasteful number, since it uses less digits than its factorization.

13321232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767 (or 761 counting only the distinct ones).

The product of its digits is 216, while the sum is 17.

The square root of 13321232 is about 3649.8262972366. The cubic root of 13321232 is about 237.0544599992.

Adding to 13321232 its reverse (23212331), we get a palindrome (36533563).

It can be divided in two parts, 1 and 3321232, that added together give a palindrome (3321233).

The spelling of 13321232 in words is "thirteen million, three hundred twenty-one thousand, two hundred thirty-two".