216839204 has 12 divisors (see below), whose sum is σ = 380377200. Its totient is φ = 108160008.

The previous prime is 216839173. The next prime is 216839209. The reversal of 216839204 is 402938612.

It is not an unprimeable number, because it can be changed into a prime (216839209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63014 + ... + 66365.

It is an arithmetic number, because the mean of its divisors is an integer number (31698100).

Almost surely, 2^216839204 is an apocalyptic number.

It is an amenable number.

216839204 is a deficient number, since it is larger than the sum of its proper divisors (163537996).

216839204 is a wasteful number, since it uses less digits than its factorization.

216839204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129802 (or 129800 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 216839204 is about 14725.4610793686. The cubic root of 216839204 is about 600.7760365867.

The spelling of 216839204 in words is "two hundred sixteen million, eight hundred thirty-nine thousand, two hundred four".