18314118 has 48 divisors (see below), whose sum is σ = 42771456. Its totient is φ = 5646960.

The previous prime is 18314113. The next prime is 18314129. The reversal of 18314118 is 81141381.

It is a junction number, because it is equal to n+sod(n) for n = 18314091 and 18314100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18314113) 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 23 ways as a sum of consecutive naturals, for example, 12121 + ... + 13547.

It is an arithmetic number, because the mean of its divisors is an integer number (891072).

Almost surely, 2^18314118 is an apocalyptic number.

18314118 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 18314118, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21385728).

18314118 is an abundant number, since it is smaller than the sum of its proper divisors (24457338).

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

18314118 is a wasteful number, since it uses less digits than its factorization.

18314118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1489 (or 1486 counting only the distinct ones).

The product of its digits is 768, while the sum is 27.

The square root of 18314118 is about 4279.4997371188. The cubic root of 18314118 is about 263.5898417461.

Adding to 18314118 its reverse (81141381), we get a palindrome (99455499).

The spelling of 18314118 in words is "eighteen million, three hundred fourteen thousand, one hundred eighteen".