216760328 has 16 divisors (see below), whose sum is σ = 413089260. Its totient is φ = 106603200.

The previous prime is 216760321. The next prime is 216760331. The reversal of 216760328 is 823067612.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 216148804 + 611524 = 14702^2 + 782^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (216760321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221603 + ... + 222578.

Almost surely, 2^216760328 is an apocalyptic number.

It is an amenable number.

216760328 is a deficient number, since it is larger than the sum of its proper divisors (196328932).

216760328 is a wasteful number, since it uses less digits than its factorization.

216760328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444248 (or 444244 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 216760328 is about 14722.7826174266. The cubic root of 216760328 is about 600.7031829750.

The spelling of 216760328 in words is "two hundred sixteen million, seven hundred sixty thousand, three hundred twenty-eight".