12338809 has 16 divisors (see below), whose sum is σ = 14993280. Its totient is φ = 9918720.

The previous prime is 12338789. The next prime is 12338819. The reversal of 12338809 is 90883321.

It is not a de Polignac number, because 12338809 - 2⁷ = 12338681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12338819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14619 + ... + 15439.

It is an arithmetic number, because the mean of its divisors is an integer number (937080).

Almost surely, 2^12338809 is an apocalyptic number.

12338809 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12338809 is a deficient number, since it is larger than the sum of its proper divisors (2654471).

12338809 is a wasteful number, since it uses less digits than its factorization.

12338809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 12338809 is about 3512.6640886939. The cubic root of 12338809 is about 231.0775462244.

The spelling of 12338809 in words is "twelve million, three hundred thirty-eight thousand, eight hundred nine".