216934328 has 32 divisors (see below), whose sum is σ = 447370560. Its totient is φ = 97991040.

The previous prime is 216934313. The next prime is 216934339. The reversal of 216934328 is 823439612.

216934328 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 216934291 and 216934300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17303 + ... + 27078.

It is an arithmetic number, because the mean of its divisors is an integer number (13980330).

Almost surely, 2^216934328 is an apocalyptic number.

It is an amenable number.

216934328 is an abundant number, since it is smaller than the sum of its proper divisors (230436232).

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

216934328 is a wasteful number, since it uses less digits than its factorization.

216934328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44447 (or 44443 counting only the distinct ones).

The product of its digits is 62208, while the sum is 38.

The square root of 216934328 is about 14728.6906410584. The cubic root of 216934328 is about 600.8638741241.

The spelling of 216934328 in words is "two hundred sixteen million, nine hundred thirty-four thousand, three hundred twenty-eight".