12427312 has 20 divisors (see below), whose sum is σ = 24909120. Its totient is φ = 5999168.

The previous prime is 12427309. The next prime is 12427319. The reversal of 12427312 is 21372421.

It is not an unprimeable number, because it can be changed into a prime (12427319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12928 + ... + 13855.

It is an arithmetic number, because the mean of its divisors is an integer number (1245456).

Almost surely, 2^12427312 is an apocalyptic number.

It is an amenable number.

12427312 is an abundant number, since it is smaller than the sum of its proper divisors (12481808).

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

12427312 is a wasteful number, since it uses less digits than its factorization.

12427312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26820 (or 26814 counting only the distinct ones).

The product of its digits is 672, while the sum is 22.

The square root of 12427312 is about 3525.2392826587. The cubic root of 12427312 is about 231.6287164745.

Adding to 12427312 its reverse (21372421), we get a palindrome (33799733).

The spelling of 12427312 in words is "twelve million, four hundred twenty-seven thousand, three hundred twelve".