2566894 has 12 divisors (see below), whose sum is σ = 4232592. Its totient is φ = 1166660.

The previous prime is 2566867. The next prime is 2566897. The reversal of 2566894 is 4986652.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2566897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5062 + ... + 5545.

It is an arithmetic number, because the mean of its divisors is an integer number (352716).

2^2566894 is an apocalyptic number.

2566894 is a deficient number, since it is larger than the sum of its proper divisors (1665698).

2566894 is a wasteful number, since it uses less digits than its factorization.

2566894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10631 (or 10620 counting only the distinct ones).

The product of its digits is 103680, while the sum is 40.

The square root of 2566894 is about 1602.1529265335. The cubic root of 2566894 is about 136.9207633163.

The spelling of 2566894 in words is "two million, five hundred sixty-six thousand, eight hundred ninety-four".