12432318 has 8 divisors (see below), whose sum is σ = 24864648. Its totient is φ = 4144104.

The previous prime is 12432317. The next prime is 12432323. The reversal of 12432318 is 81323421.

It is a sphenic number, since it is the product of 3 distinct primes.

12432318 is an admirable number.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12432311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1036021 + ... + 1036032.

It is an arithmetic number, because the mean of its divisors is an integer number (3108081).

Almost surely, 2^12432318 is an apocalyptic number.

12432318 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12432318 is a wasteful number, since it uses less digits than its factorization.

12432318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2072058.

The product of its digits is 1152, while the sum is 24.

The square root of 12432318 is about 3525.9492338943. The cubic root of 12432318 is about 231.6598140466.

Adding to 12432318 its reverse (81323421), we get a palindrome (93755739).

The spelling of 12432318 in words is "twelve million, four hundred thirty-two thousand, three hundred eighteen".