2166850 has 48 divisors (see below), whose sum is σ = 4749696. Its totient is φ = 720000.

The previous prime is 2166833. The next prime is 2166877. The reversal of 2166850 is 586612.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14275 + ... + 14425.

It is an arithmetic number, because the mean of its divisors is an integer number (98952).

2^2166850 is an apocalyptic number.

2166850 is an abundant number, since it is smaller than the sum of its proper divisors (2582846).

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

2166850 is a wasteful number, since it uses less digits than its factorization.

2166850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211 (or 206 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 2166850 is about 1472.0224183075. The cubic root of 2166850 is about 129.4025842215.

The spelling of 2166850 in words is "two million, one hundred sixty-six thousand, eight hundred fifty".