12319812 has 36 divisors (see below), whose sum is σ = 32497920. Its totient is φ = 3927792.

The previous prime is 12319799. The next prime is 12319831. The reversal of 12319812 is 21891321.

It is a tau number, because it is divible by the number of its divisors (36).

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, 6612 + ... + 8267.

It is an arithmetic number, because the mean of its divisors is an integer number (902720).

Almost surely, 2^12319812 is an apocalyptic number.

12319812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12319812 is an abundant number, since it is smaller than the sum of its proper divisors (20178108).

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

12319812 is a wasteful number, since it uses less digits than its factorization.

12319812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14912 (or 14907 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The square root of 12319812 is about 3509.9589741192. The cubic root of 12319812 is about 230.9588952554.

It can be divided in two parts, 12319 and 812, that added together give a palindrome (13131).

The spelling of 12319812 in words is "twelve million, three hundred nineteen thousand, eight hundred twelve".