118420 has 24 divisors (see below), whose sum is σ = 258048. Its totient is φ = 45600.

The previous prime is 118411. The next prime is 118423. The reversal of 118420 is 24811.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 118394 and 118403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 525 + ... + 715.

It is an arithmetic number, because the mean of its divisors is an integer number (10752).

2¹¹⁸⁴²⁰ is an apocalyptic number.

118420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 118420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129024).

118420 is an abundant number, since it is smaller than the sum of its proper divisors (139628).

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

118420 is a wasteful number, since it uses less digits than its factorization.

118420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231 (or 229 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 118420 is about 344.1220713642. The cubic root of 118420 is about 49.1068057592.

The spelling of 118420 in words is "one hundred eighteen thousand, four hundred twenty".