2165080 has 32 divisors (see below), whose sum is σ = 4924800. Its totient is φ = 856576.

The previous prime is 2165077. The next prime is 2165081. The reversal of 2165080 is 805612.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2165081) by changing a digit.

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, 4281 + ... + 4759.

It is an arithmetic number, because the mean of its divisors is an integer number (153900).

2^2165080 is an apocalyptic number.

2165080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2165080 is an abundant number, since it is smaller than the sum of its proper divisors (2759720).

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

2165080 is a wasteful number, since it uses less digits than its factorization.

2165080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603 (or 599 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 2165080 is about 1471.4210818117. The cubic root of 2165080 is about 129.3673402857.

The spelling of 2165080 in words is "two million, one hundred sixty-five thousand, eighty".