30216 has 16 divisors (see below), whose sum is σ = 75600. Its totient is φ = 10064.

The previous prime is 30211. The next prime is 30223. The reversal of 30216 is 61203.

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

It is not an unprimeable number, because it can be changed into a prime (30211) by changing a digit.

30216 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 606 + ... + 653.

It is an arithmetic number, because the mean of its divisors is an integer number (4725).

2³⁰²¹⁶ is an apocalyptic number.

It is an amenable number.

30216 is an abundant number, since it is smaller than the sum of its proper divisors (45384).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37800).

30216 is a wasteful number, since it uses less digits than its factorization.

30216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1268 (or 1264 counting only the distinct ones).

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

The square root of 30216 is about 173.8275007011. The cubic root of 30216 is about 31.1467203756.

Adding to 30216 its reverse (61203), we get a palindrome (91419).

The spelling of 30216 in words is "thirty thousand, two hundred sixteen".