18116214 has 32 divisors (see below), whose sum is σ = 37684224. Its totient is φ = 5799840.

The previous prime is 18116209. The next prime is 18116227. The reversal of 18116214 is 41261181.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31897 + ... + 32459.

It is an arithmetic number, because the mean of its divisors is an integer number (1177632).

Almost surely, 2^18116214 is an apocalyptic number.

18116214 is an abundant number, since it is smaller than the sum of its proper divisors (19568010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18116214 is a wasteful number, since it uses less digits than its factorization.

18116214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772.

The product of its digits is 384, while the sum is 24.

The square root of 18116214 is about 4256.3146030339. The cubic root of 18116214 is about 262.6369426055.

Adding to 18116214 its reverse (41261181), we get a palindrome (59377395).

The spelling of 18116214 in words is "eighteen million, one hundred sixteen thousand, two hundred fourteen".