18384314 has 32 divisors (see below), whose sum is σ = 31497984. Its totient is φ = 7983360.

The previous prime is 18384307. The next prime is 18384319. The reversal of 18384314 is 41348381.

It is not an unprimeable number, because it can be changed into a prime (18384319) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 42242 + ... + 42674.

It is an arithmetic number, because the mean of its divisors is an integer number (984312).

Almost surely, 2^18384314 is an apocalyptic number.

18384314 is a deficient number, since it is larger than the sum of its proper divisors (13113670).

18384314 is a wasteful number, since it uses less digits than its factorization.

18384314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542.

The product of its digits is 9216, while the sum is 32.

The square root of 18384314 is about 4287.6933192569. The cubic root of 18384314 is about 263.9261826829.

The spelling of 18384314 in words is "eighteen million, three hundred eighty-four thousand, three hundred fourteen".