18319214 has 8 divisors (see below), whose sum is σ = 27497880. Its totient is φ = 9153256.

The previous prime is 18319199. The next prime is 18319219. The reversal of 18319214 is 41291381.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18319219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2357 + ... + 6495.

It is an arithmetic number, because the mean of its divisors is an integer number (3437235).

Almost surely, 2^18319214 is an apocalyptic number.

18319214 is a deficient number, since it is larger than the sum of its proper divisors (9178666).

18319214 is a wasteful number, since it uses less digits than its factorization.

18319214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6354.

The product of its digits is 1728, while the sum is 29.

The square root of 18319214 is about 4280.0950924016. The cubic root of 18319214 is about 263.6142879004.

The spelling of 18319214 in words is "eighteen million, three hundred nineteen thousand, two hundred fourteen".