2165022 has 16 divisors (see below), whose sum is σ = 4811280. Its totient is φ = 721656.

The previous prime is 2165017. The next prime is 2165027. The reversal of 2165022 is 2205612.

It is an interprime number because it is at equal distance from previous prime (2165017) and next prime (2165027).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2164986 and 2165004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2165027) 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, 19993 + ... + 20100.

It is an arithmetic number, because the mean of its divisors is an integer number (300705).

2^2165022 is an apocalyptic number.

2165022 is an abundant number, since it is smaller than the sum of its proper divisors (2646258).

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

2165022 is a wasteful number, since it uses less digits than its factorization.

2165022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40104 (or 40098 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2165022 is about 1471.4013728416. The cubic root of 2165022 is about 129.3661850747.

The spelling of 2165022 in words is "two million, one hundred sixty-five thousand, twenty-two".