2163304 has 64 divisors (see below), whose sum is σ = 4999680. Its totient is φ = 864000.

The previous prime is 2163289. The next prime is 2163307. The reversal of 2163304 is 4033612.

It is a hoax number, since the sum of its digits (19) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2163307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35434 + ... + 35494.

It is an arithmetic number, because the mean of its divisors is an integer number (78120).

2^2163304 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 2163304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2499840).

2163304 is an abundant number, since it is smaller than the sum of its proper divisors (2836376).

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

2163304 is a wasteful number, since it uses less digits than its factorization.

2163304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2163304 is about 1470.8174597821. The cubic root of 2163304 is about 129.3319575673.

Adding to 2163304 its reverse (4033612), we get a palindrome (6196916).

It can be divided in two parts, 2 and 163304, that added together give a triangular number (163306 = T₅₇₁).

The spelling of 2163304 in words is "two million, one hundred sixty-three thousand, three hundred four".