216085332 has 12 divisors (see below), whose sum is σ = 504199136. Its totient is φ = 72028440.

The previous prime is 216085321. The next prime is 216085333. The reversal of 216085332 is 233580612.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 216085332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216085333) 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, 9003544 + ... + 9003567.

Almost surely, 2^216085332 is an apocalyptic number.

It is an amenable number.

216085332 is an abundant number, since it is smaller than the sum of its proper divisors (288113804).

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

216085332 is a wasteful number, since it uses less digits than its factorization.

216085332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18007118 (or 18007116 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 216085332 is about 14699.8412236323. The cubic root of 216085332 is about 600.0790007088.

The spelling of 216085332 in words is "two hundred sixteen million, eighty-five thousand, three hundred thirty-two".