118218042 has 48 divisors (see below), whose sum is σ = 266771232. Its totient is φ = 39236400.

The previous prime is 118218031. The next prime is 118218043. The reversal of 118218042 is 240812811.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 118217997 and 118218015.

It is not an unprimeable number, because it can be changed into a prime (118218043) 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, 168292 + ... + 168992.

It is an arithmetic number, because the mean of its divisors is an integer number (5557734).

Almost surely, 2^118218042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 118218042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133385616).

118218042 is an abundant number, since it is smaller than the sum of its proper divisors (148553190).

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

118218042 is an equidigital number, since it uses as much as digits as its factorization.

118218042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065 (or 1053 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 27.

The square root of 118218042 is about 10872.8120557655. The cubic root of 118218042 is about 490.7887366572.

The spelling of 118218042 in words is "one hundred eighteen million, two hundred eighteen thousand, forty-two".