12322520 has 48 divisors (see below), whose sum is σ = 32257440. Its totient is φ = 4224192.

The previous prime is 12322451. The next prime is 12322523. The reversal of 12322520 is 2522321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12322523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1184 + ... + 5103.

It is an arithmetic number, because the mean of its divisors is an integer number (672030).

Almost surely, 2^12322520 is an apocalyptic number.

12322520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12322520 is an abundant number, since it is smaller than the sum of its proper divisors (19934920).

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

12322520 is a wasteful number, since it uses less digits than its factorization.

12322520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6312 (or 6301 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 12322520 is about 3510.3447124179. The cubic root of 12322520 is about 230.9758162623.

Adding to 12322520 its reverse (2522321), we get a palindrome (14844841).

The spelling of 12322520 in words is "twelve million, three hundred twenty-two thousand, five hundred twenty".