118440140 has 96 divisors (see below), whose sum is σ = 311592960. Its totient is φ = 36815616.

The previous prime is 118440137. The next prime is 118440169. The reversal of 118440140 is 41044811.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106829 + ... + 107931.

It is an arithmetic number, because the mean of its divisors is an integer number (3245760).

Almost surely, 2^118440140 is an apocalyptic number.

118440140 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 118440140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155796480).

118440140 is an abundant number, since it is smaller than the sum of its proper divisors (193152820).

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

118440140 is a wasteful number, since it uses less digits than its factorization.

118440140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1191 (or 1189 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 118440140 is about 10883.0207203699. The cubic root of 118440140 is about 491.0958950914.

Adding to 118440140 its reverse (41044811), we get a palindrome (159484951).

The spelling of 118440140 in words is "one hundred eighteen million, four hundred forty thousand, one hundred forty".