12312844 has 6 divisors (see below), whose sum is σ = 21547484. Its totient is φ = 6156420.

The previous prime is 12312829. The next prime is 12312847. The reversal of 12312844 is 44821321.

12312844 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12312844² = 303212254736672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12312847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1539102 + ... + 1539109.

Almost surely, 2^12312844 is an apocalyptic number.

It is an amenable number.

12312844 is a deficient number, since it is larger than the sum of its proper divisors (9234640).

12312844 is a wasteful number, since it uses less digits than its factorization.

12312844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3078215 (or 3078213 counting only the distinct ones).

The product of its digits is 1536, while the sum is 25.

The square root of 12312844 is about 3508.9662295326. The cubic root of 12312844 is about 230.9153441286.

The spelling of 12312844 in words is "twelve million, three hundred twelve thousand, eight hundred forty-four".