2133688 has 8 divisors (see below), whose sum is σ = 4000680. Its totient is φ = 1066840.

The previous prime is 2133683. The next prime is 2133689. The reversal of 2133688 is 8863312.

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 133348 + ... + 133363.

It is an arithmetic number, because the mean of its divisors is an integer number (500085).

2^2133688 is an apocalyptic number.

It is an amenable number.

2133688 is a deficient number, since it is larger than the sum of its proper divisors (1866992).

2133688 is a wasteful number, since it uses less digits than its factorization.

2133688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266717 (or 266713 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 2133688 is about 1460.7148934683. The cubic root of 2133688 is about 128.7390514459.

The spelling of 2133688 in words is "two million, one hundred thirty-three thousand, six hundred eighty-eight".