118818 has 48 divisors (see below), whose sum is σ = 314496. Its totient is φ = 31680.

The previous prime is 118801. The next prime is 118819. The reversal of 118818 is 818811.

It is a junction number, because it is equal to n+sod(n) for n = 118791 and 118800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118819) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2878 + ... + 2918.

It is an arithmetic number, because the mean of its divisors is an integer number (6552).

2¹¹⁸⁸¹⁸ is an apocalyptic number.

118818 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 118818, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157248).

118818 is an abundant number, since it is smaller than the sum of its proper divisors (195678).

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

118818 is a wasteful number, since it uses less digits than its factorization.

118818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79 (or 76 counting only the distinct ones).

The product of its digits is 512, while the sum is 27.

The square root of 118818 is about 344.6998694517. The cubic root of 118818 is about 49.1617589024.

The spelling of 118818 in words is "one hundred eighteen thousand, eight hundred eighteen".