118189984 has 48 divisors (see below), whose sum is σ = 268785216. Its totient is φ = 50560000.

The previous prime is 118189979. The next prime is 118189987. The reversal of 118189984 is 489981811.

It is not an unprimeable number, because it can be changed into a prime (118189987) 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, 3892 + ... + 15859.

It is an arithmetic number, because the mean of its divisors is an integer number (5599692).

Almost surely, 2^118189984 is an apocalyptic number.

It is an amenable number.

118189984 is an abundant number, since it is smaller than the sum of its proper divisors (150595232).

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

118189984 is a wasteful number, since it uses less digits than its factorization.

118189984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19789 (or 19781 counting only the distinct ones).

The product of its digits is 165888, while the sum is 49.

The square root of 118189984 is about 10871.5216966163. The cubic root of 118189984 is about 490.7499054723.

The spelling of 118189984 in words is "one hundred eighteen million, one hundred eighty-nine thousand, nine hundred eighty-four".