216300 has 72 divisors (see below), whose sum is σ = 722176. Its totient is φ = 48960.

The previous prime is 216289. The next prime is 216317. The reversal of 216300 is 3612.

216300 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an Ulam number.

It is a nialpdrome in base 12.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2049 + ... + 2151.

2²¹⁶³⁰⁰ is an apocalyptic number.

216300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 216300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (361088).

216300 is an abundant number, since it is smaller than the sum of its proper divisors (505876).

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

216300 is a wasteful number, since it uses less digits than its factorization.

216300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 216300 is about 465.0806381693. The cubic root of 216300 is about 60.0277649276.

Adding to 216300 its reverse (3612), we get a palindrome (219912).

The spelling of 216300 in words is "two hundred sixteen thousand, three hundred".