12431376 has 60 divisors (see below), whose sum is σ = 35109360. Its totient is φ = 4105920.

The previous prime is 12431357. The next prime is 12431387. The reversal of 12431376 is 67313421.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18535 + ... + 19193.

It is an arithmetic number, because the mean of its divisors is an integer number (585156).

Almost surely, 2^12431376 is an apocalyptic number.

12431376 is a gapful number since it is divisible by the number (16) 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 12431376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17554680).

12431376 is an abundant number, since it is smaller than the sum of its proper divisors (22677984).

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

12431376 is a wasteful number, since it uses less digits than its factorization.

12431376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804 (or 795 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 12431376 is about 3525.8156503141. The cubic root of 12431376 is about 231.6539629239.

Adding to 12431376 its reverse (67313421), we get a palindrome (79744797).

The spelling of 12431376 in words is "twelve million, four hundred thirty-one thousand, three hundred seventy-six".