12388412 has 6 divisors (see below), whose sum is σ = 21679728. Its totient is φ = 6194204.

The previous prime is 12388403. The next prime is 12388417. The reversal of 12388412 is 21488321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12388417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1548548 + ... + 1548555.

It is an arithmetic number, because the mean of its divisors is an integer number (3613288).

Almost surely, 2^12388412 is an apocalyptic number.

It is an amenable number.

12388412 is a deficient number, since it is larger than the sum of its proper divisors (9291316).

12388412 is a wasteful number, since it uses less digits than its factorization.

12388412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3097107 (or 3097105 counting only the distinct ones).

The product of its digits is 3072, while the sum is 29.

The square root of 12388412 is about 3519.7176023085. The cubic root of 12388412 is about 231.3867822877.

Subtracting 12388412 from its reverse (21488321), we obtain a palindrome (9099909).

The spelling of 12388412 in words is "twelve million, three hundred eighty-eight thousand, four hundred twelve".