12389434 has 8 divisors (see below), whose sum is σ = 18668160. Its totient is φ = 6166716.

The previous prime is 12389407. The next prime is 12389437. The reversal of 12389434 is 43498321.

12389434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 12389434.

It is not an unprimeable number, because it can be changed into a prime (12389437) 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, 13444 + ... + 14335.

It is an arithmetic number, because the mean of its divisors is an integer number (2333520).

Almost surely, 2^12389434 is an apocalyptic number.

12389434 is a deficient number, since it is larger than the sum of its proper divisors (6278726).

12389434 is a wasteful number, since it uses less digits than its factorization.

12389434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28004.

The product of its digits is 20736, while the sum is 34.

The square root of 12389434 is about 3519.8627814163. The cubic root of 12389434 is about 231.3931449754.

The spelling of 12389434 in words is "twelve million, three hundred eighty-nine thousand, four hundred thirty-four".