218042014 has 4 divisors (see below), whose sum is σ = 327063024. Its totient is φ = 109021006.

The previous prime is 218042009. The next prime is 218042023. The reversal of 218042014 is 410240812.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54510502 + ... + 54510505.

It is an arithmetic number, because the mean of its divisors is an integer number (81765756).

Almost surely, 2^218042014 is an apocalyptic number.

218042014 is a deficient number, since it is larger than the sum of its proper divisors (109021010).

218042014 is a wasteful number, since it uses less digits than its factorization.

218042014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109021009.

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 218042014 is about 14766.2457652580. The cubic root of 218042014 is about 601.8848265518.

Adding to 218042014 its reverse (410240812), we get a palindrome (628282826).

The spelling of 218042014 in words is "two hundred eighteen million, forty-two thousand, fourteen".