14213818 has 16 divisors (see below), whose sum is σ = 21744360. Its totient is φ = 6967296.

The previous prime is 14213813. The next prime is 14213821. The reversal of 14213818 is 81831241.

It can be written as a sum of positive squares in 4 ways, for example, as 13227769 + 986049 = 3637^2 + 993^2 .

It is not an unprimeable number, because it can be changed into a prime (14213813) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 24346 + ... + 24922.

Almost surely, 2^14213818 is an apocalyptic number.

14213818 is a deficient number, since it is larger than the sum of its proper divisors (7530542).

14213818 is a wasteful number, since it uses less digits than its factorization.

14213818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801.

The product of its digits is 1536, while the sum is 28.

The square root of 14213818 is about 3770.1217486972. The cubic root of 14213818 is about 242.2350129161.

The spelling of 14213818 in words is "fourteen million, two hundred thirteen thousand, eight hundred eighteen".