12388934 has 4 divisors (see below), whose sum is σ = 18583404. Its totient is φ = 6194466.

The previous prime is 12388921. The next prime is 12388949. The reversal of 12388934 is 43988321.

It is a semiprime because it is the product of two primes.

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

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, 3097232 + ... + 3097235.

It is an arithmetic number, because the mean of its divisors is an integer number (4645851).

Almost surely, 2^12388934 is an apocalyptic number.

12388934 is a deficient number, since it is larger than the sum of its proper divisors (6194470).

12388934 is an equidigital number, since it uses as much as digits as its factorization.

12388934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6194469.

The product of its digits is 41472, while the sum is 38.

The square root of 12388934 is about 3519.7917552037. The cubic root of 12388934 is about 231.3900321582.

The spelling of 12388934 in words is "twelve million, three hundred eighty-eight thousand, nine hundred thirty-four".