2540166 has 32 divisors (see below), whose sum is σ = 5391360. Its totient is φ = 796224.

The previous prime is 2540141. The next prime is 2540173. The reversal of 2540166 is 6610452.

It is a Curzon number.

It is a congruent number.

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, 10786 + ... + 11018.

It is an arithmetic number, because the mean of its divisors is an integer number (168480).

2^2540166 is an apocalyptic number.

2540166 is an abundant number, since it is smaller than the sum of its proper divisors (2851194).

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

2540166 is a wasteful number, since it uses less digits than its factorization.

2540166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2540166 is about 1593.7898230319. The cubic root of 2540166 is about 136.4438712461.

The spelling of 2540166 in words is "two million, five hundred forty thousand, one hundred sixty-six".