12686466 has 32 divisors (see below), whose sum is σ = 27998208. Its totient is φ = 3807360.

The previous prime is 12686447. The next prime is 12686477. The reversal of 12686466 is 66468621.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1215 + ... + 5181.

It is an arithmetic number, because the mean of its divisors is an integer number (874944).

Almost surely, 2^12686466 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12686466, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13999104).

12686466 is an abundant number, since it is smaller than the sum of its proper divisors (15311742).

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

12686466 is a wasteful number, since it uses less digits than its factorization.

12686466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4026.

The product of its digits is 82944, while the sum is 39.

The square root of 12686466 is about 3561.8065640908. The cubic root of 12686466 is about 233.2277486014.

The spelling of 12686466 in words is "twelve million, six hundred eighty-six thousand, four hundred sixty-six".