12338918 has 8 divisors (see below), whose sum is σ = 18564312. Its totient is φ = 6150816.

The previous prime is 12338903. The next prime is 12338927. The reversal of 12338918 is 81983321.

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

It is a super-4 number, since 4×12338918⁴ (a number of 29 digits) contains 4444 as substring.

It is a Curzon number.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 8480 + ... + 9827.

It is an arithmetic number, because the mean of its divisors is an integer number (2320539).

Almost surely, 2^12338918 is an apocalyptic number.

12338918 is a deficient number, since it is larger than the sum of its proper divisors (6225394).

12338918 is a wasteful number, since it uses less digits than its factorization.

12338918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18646.

The product of its digits is 10368, while the sum is 35.

The square root of 12338918 is about 3512.6796039491. The cubic root of 12338918 is about 231.0782266622.

The spelling of 12338918 in words is "twelve million, three hundred thirty-eight thousand, nine hundred eighteen".