2160684 has 36 divisors (see below), whose sum is σ = 5582304. Its totient is φ = 704352.

The previous prime is 2160677. The next prime is 2160721. The reversal of 2160684 is 4860612.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1054 + ... + 2330.

It is an arithmetic number, because the mean of its divisors is an integer number (155064).

2^2160684 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 2160684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2791152).

2160684 is an abundant number, since it is smaller than the sum of its proper divisors (3421620).

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

2160684 is a wasteful number, since it uses less digits than its factorization.

2160684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334 (or 1329 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 2160684 is about 1469.9265287762. The cubic root of 2160684 is about 129.2797247149.

The spelling of 2160684 in words is "two million, one hundred sixty thousand, six hundred eighty-four".