16218214 has 4 divisors (see below), whose sum is σ = 24327324. Its totient is φ = 8109106.

The previous prime is 16218211. The next prime is 16218217. The reversal of 16218214 is 41281261.

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

It is an interprime number because it is at equal distance from previous prime (16218211) and next prime (16218217).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16218211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4054552 + ... + 4054555.

It is an arithmetic number, because the mean of its divisors is an integer number (6081831).

Almost surely, 2^16218214 is an apocalyptic number.

16218214 is a deficient number, since it is larger than the sum of its proper divisors (8109110).

16218214 is an equidigital number, since it uses as much as digits as its factorization.

16218214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8109109.

The product of its digits is 768, while the sum is 25.

The square root of 16218214 is about 4027.1843762113. The cubic root of 16218214 is about 253.1245929781.

Adding to 16218214 its reverse (41281261), we get a palindrome (57499475).

The spelling of 16218214 in words is "sixteen million, two hundred eighteen thousand, two hundred fourteen".