216248218 has 8 divisors (see below), whose sum is σ = 324434880. Its totient is φ = 108103260.

The previous prime is 216248209. The next prime is 216248237. The reversal of 216248218 is 812842612.

216248218 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13773 + ... + 24943.

It is an arithmetic number, because the mean of its divisors is an integer number (40554360).

Almost surely, 2^216248218 is an apocalyptic number.

216248218 is a deficient number, since it is larger than the sum of its proper divisors (108186662).

216248218 is a wasteful number, since it uses less digits than its factorization.

216248218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20852.

The product of its digits is 12288, while the sum is 34.

The square root of 216248218 is about 14705.3805799102. The cubic root of 216248218 is about 600.2297435001.

The spelling of 216248218 in words is "two hundred sixteen million, two hundred forty-eight thousand, two hundred eighteen".