216885352 has 16 divisors (see below), whose sum is σ = 407830500. Its totient is φ = 108130560.

The previous prime is 216885329. The next prime is 216885353. The reversal of 216885352 is 253588612.

216885352 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 216855076 + 30276 = 14726^2 + 174^2 .

It is not an unprimeable number, because it can be changed into a prime (216885353) 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, 36049 + ... + 41632.

Almost surely, 2^216885352 is an apocalyptic number.

It is an amenable number.

216885352 is a deficient number, since it is larger than the sum of its proper divisors (190945148).

216885352 is a wasteful number, since it uses less digits than its factorization.

216885352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78036 (or 78032 counting only the distinct ones).

The product of its digits is 115200, while the sum is 40.

The square root of 216885352 is about 14727.0279418490. The cubic root of 216885352 is about 600.8186528748.

The spelling of 216885352 in words is "two hundred sixteen million, eight hundred eighty-five thousand, three hundred fifty-two".