2168604 has 36 divisors (see below), whose sum is σ = 5580120. Its totient is φ = 709920.

The previous prime is 2168599. The next prime is 2168609. The reversal of 2168604 is 4068612.

It is an interprime number because it is at equal distance from previous prime (2168599) and next prime (2168609).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2168609) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1614 + ... + 2634.

2^2168604 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 2168604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2790060).

2168604 is an abundant number, since it is smaller than the sum of its proper divisors (3411516).

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

2168604 is a wasteful number, since it uses less digits than its factorization.

2168604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090 (or 1085 counting only the distinct ones).

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

The square root of 2168604 is about 1472.6180767599. The cubic root of 2168604 is about 129.4374906399.

It can be divided in two parts, 2168 and 604, that added together give a palindrome (2772).

The spelling of 2168604 in words is "two million, one hundred sixty-eight thousand, six hundred four".