2185304 has 32 divisors (see below), whose sum is σ = 4708800. Its totient is φ = 940320.

The previous prime is 2185297. The next prime is 2185343. The reversal of 2185304 is 4035812.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2185304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1019 + ... + 2325.

It is an arithmetic number, because the mean of its divisors is an integer number (147150).

2^2185304 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 2185304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2354400).

2185304 is an abundant number, since it is smaller than the sum of its proper divisors (2523496).

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

2185304 is a wasteful number, since it uses less digits than its factorization.

2185304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343 (or 1339 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 2185304 is about 1478.2773758669. The cubic root of 2185304 is about 129.7688990802.

The spelling of 2185304 in words is "two million, one hundred eighty-five thousand, three hundred four".