12438832 has 80 divisors (see below), whose sum is σ = 29998080. Its totient is φ = 4875264.

The previous prime is 12438827. The next prime is 12438851. The reversal of 12438832 is 23883421.

It is a junction number, because it is equal to n+sod(n) for n = 12438794 and 12438803.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89419 + ... + 89557.

It is an arithmetic number, because the mean of its divisors is an integer number (374976).

Almost surely, 2^12438832 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 12438832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14999040).

12438832 is an abundant number, since it is smaller than the sum of its proper divisors (17559248).

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

12438832 is a wasteful number, since it uses less digits than its factorization.

12438832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218 (or 212 counting only the distinct ones).

The product of its digits is 9216, while the sum is 31.

The square root of 12438832 is about 3526.8728358136. The cubic root of 12438832 is about 231.7002669091.

The spelling of 12438832 in words is "twelve million, four hundred thirty-eight thousand, eight hundred thirty-two".