12438318 has 16 divisors (see below), whose sum is σ = 24955776. Its totient is φ = 4132920.

The previous prime is 12438311. The next prime is 12438403. The reversal of 12438318 is 81383421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12438311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1146 + ... + 5117.

It is an arithmetic number, because the mean of its divisors is an integer number (1559736).

Almost surely, 2^12438318 is an apocalyptic number.

12438318 is an abundant number, since it is smaller than the sum of its proper divisors (12517458).

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

12438318 is a wasteful number, since it uses less digits than its factorization.

12438318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6599.

The product of its digits is 4608, while the sum is 30.

The square root of 12438318 is about 3526.7999659748. The cubic root of 12438318 is about 231.6970754096.

The spelling of 12438318 in words is "twelve million, four hundred thirty-eight thousand, three hundred eighteen".