12678338 has 8 divisors (see below), whose sum is σ = 19046460. Its totient is φ = 6329520.

The previous prime is 12678299. The next prime is 12678353. The reversal of 12678338 is 83387621.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12482089 + 196249 = 3533^2 + 443^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3053 + ... + 5888.

Almost surely, 2^12678338 is an apocalyptic number.

12678338 is a deficient number, since it is larger than the sum of its proper divisors (6368122).

12678338 is an equidigital number, since it uses as much as digits as its factorization.

12678338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9652.

The product of its digits is 48384, while the sum is 38.

The square root of 12678338 is about 3560.6653872556. The cubic root of 12678338 is about 233.1779296282.

The spelling of 12678338 in words is "twelve million, six hundred seventy-eight thousand, three hundred thirty-eight".