2165892 has 12 divisors (see below), whose sum is σ = 5053776. Its totient is φ = 721960.

The previous prime is 2165873. The next prime is 2165893. The reversal of 2165892 is 2985612.

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

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (2165893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90234 + ... + 90257.

It is an arithmetic number, because the mean of its divisors is an integer number (421148).

2^2165892 is an apocalyptic number.

It is an amenable number.

2165892 is an abundant number, since it is smaller than the sum of its proper divisors (2887884).

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

2165892 is a wasteful number, since it uses less digits than its factorization.

2165892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180498 (or 180496 counting only the distinct ones).

The product of its digits is 8640, while the sum is 33.

The square root of 2165892 is about 1471.6969796803. The cubic root of 2165892 is about 129.3835110740.

The spelling of 2165892 in words is "two million, one hundred sixty-five thousand, eight hundred ninety-two".