18368214 has 16 divisors (see below), whose sum is σ = 38333952. Its totient is φ = 5856488.

The previous prime is 18368173. The next prime is 18368221. The reversal of 18368214 is 41286381.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66414 + ... + 66689.

It is an arithmetic number, because the mean of its divisors is an integer number (2395872).

Almost surely, 2^18368214 is an apocalyptic number.

18368214 is an abundant number, since it is smaller than the sum of its proper divisors (19965738).

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

18368214 is a wasteful number, since it uses less digits than its factorization.

18368214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133131.

The product of its digits is 9216, while the sum is 33.

The square root of 18368214 is about 4285.8154416633. The cubic root of 18368214 is about 263.8491160315.

The spelling of 18368214 in words is "eighteen million, three hundred sixty-eight thousand, two hundred fourteen".