12438806 has 8 divisors (see below), whose sum is σ = 19640280. Its totient is φ = 5892048.

The previous prime is 12438799. The next prime is 12438809. The reversal of 12438806 is 60883421.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12438809) 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, 163631 + ... + 163706.

It is an arithmetic number, because the mean of its divisors is an integer number (2455035).

Almost surely, 2^12438806 is an apocalyptic number.

12438806 is a deficient number, since it is larger than the sum of its proper divisors (7201474).

12438806 is a wasteful number, since it uses less digits than its factorization.

12438806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327358.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 12438806 is about 3526.8691498268. The cubic root of 12438806 is about 231.7001054735.

The spelling of 12438806 in words is "twelve million, four hundred thirty-eight thousand, eight hundred six".