2133684 has 36 divisors (see below), whose sum is σ = 6164704. Its totient is φ = 609552.

The previous prime is 2133683. The next prime is 2133689. The reversal of 2133684 is 4863312.

It is a happy number.

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 (2133683) 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, 3982 + ... + 4485.

2^2133684 is an apocalyptic number.

It is an amenable number.

2133684 is an abundant number, since it is smaller than the sum of its proper divisors (4031020).

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

2133684 is a wasteful number, since it uses less digits than its factorization.

2133684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8484 (or 8479 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 2133684 is about 1460.7135242750. The cubic root of 2133684 is about 128.7389709973.

Adding to 2133684 its reverse (4863312), we get a palindrome (6996996).

The spelling of 2133684 in words is "two million, one hundred thirty-three thousand, six hundred eighty-four".