216352 has 12 divisors (see below), whose sum is σ = 426006. Its totient is φ = 108160.

The previous prime is 216347. The next prime is 216371. The reversal of 216352 is 253612.

It is a happy number.

216352 is digitally balanced in base 3, 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 only one way, i.e., 156816 + 59536 = 396^2 + 244^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3349 + ... + 3412.

2²¹⁶³⁵² is an apocalyptic number.

It is an amenable number.

216352 is a deficient number, since it is larger than the sum of its proper divisors (209654).

216352 is an equidigital number, since it uses as much as digits as its factorization.

216352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6771 (or 6763 counting only the distinct ones).

The product of its digits is 360, while the sum is 19.

The square root of 216352 is about 465.1365390936. The cubic root of 216352 is about 60.0325749040.

Adding to 216352 its reverse (253612), we get a palindrome (469964).

The spelling of 216352 in words is "two hundred sixteen thousand, three hundred fifty-two".