12664338 has 16 divisors (see below), whose sum is σ = 25868160. Its totient is φ = 4131536.

The previous prime is 12664319. The next prime is 12664343. The reversal of 12664338 is 83346621.

It is a junction number, because it is equal to n+sod(n) for n = 12664299 and 12664308.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22173 + ... + 22736.

It is an arithmetic number, because the mean of its divisors is an integer number (1616760).

Almost surely, 2^12664338 is an apocalyptic number.

12664338 is an abundant number, since it is smaller than the sum of its proper divisors (13203822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12664338 is a wasteful number, since it uses less digits than its factorization.

12664338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44961.

The product of its digits is 20736, while the sum is 33.

The square root of 12664338 is about 3558.6989195491. The cubic root of 12664338 is about 233.0920694429.

The spelling of 12664338 in words is "twelve million, six hundred sixty-four thousand, three hundred thirty-eight".