2166008 has 32 divisors (see below), whose sum is σ = 4460400. Its totient is φ = 979968.

The previous prime is 2166007. The next prime is 2166023. The reversal of 2166008 is 8006612.

2166008 is nontrivially palindromic in base 12.

It is an Ulam number.

It is a zygodrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2166007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5960 + ... + 6312.

2^2166008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2166008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2230200).

2166008 is an abundant number, since it is smaller than the sum of its proper divisors (2294392).

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

2166008 is a wasteful number, since it uses less digits than its factorization.

2166008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431 (or 427 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 2166008 is about 1471.7363894394. The cubic root of 2166008 is about 129.3858208566.

The spelling of 2166008 in words is "two million, one hundred sixty-six thousand, eight".