12332520 has 128 divisors (see below), whose sum is σ = 43344000. Its totient is φ = 3110400.

The previous prime is 12332491. The next prime is 12332521. The reversal of 12332520 is 2523321.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12332493 and 12332502.

It is not an unprimeable number, because it can be changed into a prime (12332521) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 20220 + ... + 20820.

It is an arithmetic number, because the mean of its divisors is an integer number (338625).

Almost surely, 2^12332520 is an apocalyptic number.

12332520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12332520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21672000).

12332520 is an abundant number, since it is smaller than the sum of its proper divisors (31011480).

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

12332520 is a wasteful number, since it uses less digits than its factorization.

12332520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640 (or 630 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 12332520 is about 3511.7687850996. The cubic root of 12332520 is about 231.0382800450.

Adding to 12332520 its reverse (2523321), we get a palindrome (14855841).

The spelling of 12332520 in words is "twelve million, three hundred thirty-two thousand, five hundred twenty".