12866274 has 24 divisors (see below), whose sum is σ = 28168140. Its totient is φ = 4243968.

The previous prime is 12866261. The next prime is 12866279. The reversal of 12866274 is 47266821.

12866274 is a `hidden beast` number, since 1 + 28 + 6 + 627 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12215025 + 651249 = 3495^2 + 807^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12866279) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1939 + ... + 5430.

Almost surely, 2^12866274 is an apocalyptic number.

12866274 is an abundant number, since it is smaller than the sum of its proper divisors (15301866).

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

12866274 is a wasteful number, since it uses less digits than its factorization.

12866274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7474 (or 7471 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 12866274 is about 3586.9588790506. The cubic root of 12866274 is about 234.3244458430.

The spelling of 12866274 in words is "twelve million, eight hundred sixty-six thousand, two hundred seventy-four".