216274 has 8 divisors (see below), whose sum is σ = 343548. Its totient is φ = 101760.

The previous prime is 216263. The next prime is 216289. The reversal of 216274 is 472612.

216274 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 216225 + 49 = 465^2 + 7^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3147 + ... + 3214.

2²¹⁶²⁷⁴ is an apocalyptic number.

216274 is a deficient number, since it is larger than the sum of its proper divisors (127274).

216274 is a wasteful number, since it uses less digits than its factorization.

216274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6380.

The product of its digits is 672, while the sum is 22.

The square root of 216274 is about 465.0526851874. The cubic root of 216274 is about 60.0253596503.

Adding to 216274 its reverse (472612), we get a palindrome (688886).

The spelling of 216274 in words is "two hundred sixteen thousand, two hundred seventy-four".