218218714 has 8 divisors (see below), whose sum is σ = 374089248. Its totient is φ = 93522300.

The previous prime is 218218691. The next prime is 218218717. The reversal of 218218714 is 417812812.

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

It is a self number, because there is not a number n which added to its sum of digits gives 218218714.

It is not an unprimeable number, because it can be changed into a prime (218218717) by changing a digit.

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, 7793512 + ... + 7793539.

It is an arithmetic number, because the mean of its divisors is an integer number (46761156).

Almost surely, 2^218218714 is an apocalyptic number.

218218714 is a deficient number, since it is larger than the sum of its proper divisors (155870534).

218218714 is a wasteful number, since it uses less digits than its factorization.

218218714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15587060.

The product of its digits is 7168, while the sum is 34.

The square root of 218218714 is about 14772.2277940736. The cubic root of 218218714 is about 602.0473706575.

The spelling of 218218714 in words is "two hundred eighteen million, two hundred eighteen thousand, seven hundred fourteen".