218028219 has 8 divisors (see below), whose sum is σ = 292227072. Its totient is φ = 144590760.

The previous prime is 218028203. The next prime is 218028241. The reversal of 218028219 is 912820812.

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

It is not a de Polignac number, because 218028219 - 2⁴ = 218028203 is a prime.

It is a super-2 number, since 2×218028219² = 95072608560623922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 218028219.

It is not an unprimeable number, because it can be changed into a prime (218028269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189679 + ... + 190824.

It is an arithmetic number, because the mean of its divisors is an integer number (36528384).

Almost surely, 2^218028219 is an apocalyptic number.

218028219 is a deficient number, since it is larger than the sum of its proper divisors (74198853).

218028219 is a wasteful number, since it uses less digits than its factorization.

218028219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380697.

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 218028219 is about 14765.7786452324. The cubic root of 218028219 is about 601.8721330100.

The spelling of 218028219 in words is "two hundred eighteen million, twenty-eight thousand, two hundred nineteen".