2166296 has 32 divisors (see below), whose sum is σ = 4492800. Its totient is φ = 971040.

The previous prime is 2166289. The next prime is 2166319. The reversal of 2166296 is 6926612.

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 7 ways as a sum of consecutive naturals, for example, 8945 + ... + 9183.

It is an arithmetic number, because the mean of its divisors is an integer number (140400).

2^2166296 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 2166296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2246400).

2166296 is an abundant number, since it is smaller than the sum of its proper divisors (2326504).

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

2166296 is a wasteful number, since it uses less digits than its factorization.

2166296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359 (or 355 counting only the distinct ones).

The product of its digits is 7776, while the sum is 32.

The square root of 2166296 is about 1471.8342297963. The cubic root of 2166296 is about 129.3915551329.

The spelling of 2166296 in words is "two million, one hundred sixty-six thousand, two hundred ninety-six".