2165882 has 8 divisors (see below), whose sum is σ = 3263700. Its totient is φ = 1077984.

The previous prime is 2165873. The next prime is 2165893. The reversal of 2165882 is 2885612.

It can be written as a sum of positive squares in 2 ways, for example, as 2157961 + 7921 = 1469^2 + 89^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a d-powerful number, because it can be written as 2⁵ + 1 + 6² + 5⁵ + 8⁵ + 8⁵ + 2²¹ .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1907 + ... + 2822.

2^2165882 is an apocalyptic number.

2165882 is a deficient number, since it is larger than the sum of its proper divisors (1097818).

2165882 is a wasteful number, since it uses less digits than its factorization.

2165882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4960.

The product of its digits is 7680, while the sum is 32.

The square root of 2165882 is about 1471.6935822378. The cubic root of 2165882 is about 129.3833119509.

The spelling of 2165882 in words is "two million, one hundred sixty-five thousand, eight hundred eighty-two".