216276 has 24 divisors (see below), whose sum is σ = 514080. Its totient is φ = 70752.

The previous prime is 216263. The next prime is 216289. The reversal of 216276 is 672612.

It is a happy number.

216276 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (216263) and next prime (216289).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 216276.

It is an unprimeable number.

216276 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 7 ways as a sum of consecutive naturals, for example, 670 + ... + 938.

It is an arithmetic number, because the mean of its divisors is an integer number (21420).

2²¹⁶²⁷⁶ is an apocalyptic number.

It is an amenable number.

216276 is an abundant number, since it is smaller than the sum of its proper divisors (297804).

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

216276 is a wasteful number, since it uses less digits than its factorization.

216276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343 (or 341 counting only the distinct ones).

The product of its digits is 1008, while the sum is 24.

The square root of 216276 is about 465.0548354764. The cubic root of 216276 is about 60.0255446785.

Adding to 216276 its reverse (672612), we get a palindrome (888888).

The spelling of 216276 in words is "two hundred sixteen thousand, two hundred seventy-six".