216043210 has 8 divisors (see below), whose sum is σ = 388877796. Its totient is φ = 86417280.

The previous prime is 216043189. The next prime is 216043237. The reversal of 216043210 is 12340612.

It can be written as a sum of positive squares in 2 ways, for example, as 215707969 + 335241 = 14687^2 + 579^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10802151 + ... + 10802170.

Almost surely, 2^216043210 is an apocalyptic number.

216043210 is a deficient number, since it is larger than the sum of its proper divisors (172834586).

216043210 is a wasteful number, since it uses less digits than its factorization.

216043210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21604328.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 216043210 is about 14698.4084172403. The cubic root of 216043210 is about 600.0400065917.

Adding to 216043210 its reverse (12340612), we get a palindrome (228383822).

The spelling of 216043210 in words is "two hundred sixteen million, forty-three thousand, two hundred ten".