216236 has 6 divisors (see below), whose sum is σ = 378420. Its totient is φ = 108116.

The previous prime is 216233. The next prime is 216259. The reversal of 216236 is 632612.

216236 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 216236.

It is not an unprimeable number, because it can be changed into a prime (216233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27026 + ... + 27033.

It is an arithmetic number, because the mean of its divisors is an integer number (63070).

2²¹⁶²³⁶ is an apocalyptic number.

It is an amenable number.

216236 is a deficient number, since it is larger than the sum of its proper divisors (162184).

216236 is a wasteful number, since it uses less digits than its factorization.

216236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54063 (or 54061 counting only the distinct ones).

The product of its digits is 432, while the sum is 20.

The square root of 216236 is about 465.0118278066. The cubic root of 216236 is about 60.0218438983.

Adding to 216236 its reverse (632612), we get a palindrome (848848).

The spelling of 216236 in words is "two hundred sixteen thousand, two hundred thirty-six".