216273236 has 12 divisors (see below), whose sum is σ = 390687360. Its totient is φ = 104648280.

The previous prime is 216273229. The next prime is 216273241. The reversal of 216273236 is 632372612.

It is a super-2 number, since 2×216273236² = 93548225219823392, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 871946 + ... + 872193.

It is an arithmetic number, because the mean of its divisors is an integer number (32557280).

Almost surely, 2^216273236 is an apocalyptic number.

It is an amenable number.

216273236 is a deficient number, since it is larger than the sum of its proper divisors (174414124).

216273236 is a wasteful number, since it uses less digits than its factorization.

216273236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1744174 (or 1744172 counting only the distinct ones).

The product of its digits is 18144, while the sum is 32.

The square root of 216273236 is about 14706.2311963331. The cubic root of 216273236 is about 600.2528896927.

The spelling of 216273236 in words is "two hundred sixteen million, two hundred seventy-three thousand, two hundred thirty-six".