216333712 has 40 divisors (see below), whose sum is σ = 490718592. Its totient is φ = 90451200.

The previous prime is 216333683. The next prime is 216333713. The reversal of 216333712 is 217333612.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (216333713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18964 + ... + 28147.

Almost surely, 2^216333712 is an apocalyptic number.

It is an amenable number.

216333712 is an abundant number, since it is smaller than the sum of its proper divisors (274384880).

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

216333712 is a wasteful number, since it uses less digits than its factorization.

216333712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47167 (or 47161 counting only the distinct ones).

The product of its digits is 4536, while the sum is 28.

The square root of 216333712 is about 14708.2871878407. The cubic root of 216333712 is about 600.3088336017.

The spelling of 216333712 in words is "two hundred sixteen million, three hundred thirty-three thousand, seven hundred twelve".