2166036 has 12 divisors (see below), whose sum is σ = 5054112. Its totient is φ = 722008.

The previous prime is 2166029. The next prime is 2166041. The reversal of 2166036 is 6306612.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2165997 and 2166015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90240 + ... + 90263.

It is an arithmetic number, because the mean of its divisors is an integer number (421176).

2^2166036 is an apocalyptic number.

It is an amenable number.

2166036 is an abundant number, since it is smaller than the sum of its proper divisors (2888076).

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

2166036 is a wasteful number, since it uses less digits than its factorization.

2166036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180510 (or 180508 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 2166036 is about 1471.7459019817. The cubic root of 2166036 is about 129.3863783780.

The spelling of 2166036 in words is "two million, one hundred sixty-six thousand, thirty-six".