12338666 has 4 divisors (see below), whose sum is σ = 18508002. Its totient is φ = 6169332.

The previous prime is 12338639. The next prime is 12338671. The reversal of 12338666 is 66683321.

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

It can be written as a sum of positive squares in only one way, i.e., 12103441 + 235225 = 3479^2 + 485^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3084665 + ... + 3084668.

Almost surely, 2^12338666 is an apocalyptic number.

12338666 is a deficient number, since it is larger than the sum of its proper divisors (6169336).

12338666 is an equidigital number, since it uses as much as digits as its factorization.

12338666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6169335.

The product of its digits is 31104, while the sum is 35.

The square root of 12338666 is about 3512.6437337140. The cubic root of 12338666 is about 231.0766535338.

The spelling of 12338666 in words is "twelve million, three hundred thirty-eight thousand, six hundred sixty-six".