18314318 has 12 divisors (see below), whose sum is σ = 30196320. Its totient is φ = 8324580.

The previous prime is 18314311. The next prime is 18314323. The reversal of 18314318 is 81341381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18314311) 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 5 ways as a sum of consecutive naturals, for example, 37598 + ... + 38081.

It is an arithmetic number, because the mean of its divisors is an integer number (2516360).

Almost surely, 2^18314318 is an apocalyptic number.

18314318 is a deficient number, since it is larger than the sum of its proper divisors (11882002).

18314318 is a wasteful number, since it uses less digits than its factorization.

18314318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75703 (or 75692 counting only the distinct ones).

The product of its digits is 2304, while the sum is 29.

The square root of 18314318 is about 4279.5231042723. The cubic root of 18314318 is about 263.5908012568.

Adding to 18314318 its reverse (81341381), we get a palindrome (99655699).

The spelling of 18314318 in words is "eighteen million, three hundred fourteen thousand, three hundred eighteen".