218768234 has 8 divisors (see below), whose sum is σ = 328367520. Its totient is φ = 109312396.

The previous prime is 218768233. The next prime is 218768237. The reversal of 218768234 is 432867812.

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

It is a junction number, because it is equal to n+sod(n) for n = 218768191 and 218768200.

It is not an unprimeable number, because it can be changed into a prime (218768233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31964 + ... + 38199.

It is an arithmetic number, because the mean of its divisors is an integer number (41045940).

Almost surely, 2^218768234 is an apocalyptic number.

218768234 is a deficient number, since it is larger than the sum of its proper divisors (109599286).

218768234 is a wasteful number, since it uses less digits than its factorization.

218768234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71724.

The product of its digits is 129024, while the sum is 41.

The square root of 218768234 is about 14790.8158666113. The cubic root of 218768234 is about 602.5523071154.

The spelling of 218768234 in words is "two hundred eighteen million, seven hundred sixty-eight thousand, two hundred thirty-four".