2566386 has 24 divisors (see below), whose sum is σ = 5803200. Its totient is φ = 818136.

The previous prime is 2566367. The next prime is 2566411. The reversal of 2566386 is 6836652.

2566386 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2566386.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2686 + ... + 3513.

It is an arithmetic number, because the mean of its divisors is an integer number (241800).

2^2566386 is an apocalyptic number.

2566386 is an abundant number, since it is smaller than the sum of its proper divisors (3236814).

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

2566386 is a wasteful number, since it uses less digits than its factorization.

2566386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6230 (or 6227 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 2566386 is about 1601.9943820126. The cubic root of 2566386 is about 136.9117303065.

The spelling of 2566386 in words is "two million, five hundred sixty-six thousand, three hundred eighty-six".