118232140 has 48 divisors (see below), whose sum is σ = 276030720. Its totient is φ = 42243840.

The previous prime is 118232137. The next prime is 118232141. The reversal of 118232140 is 41232811.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (118232141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 726 + ... + 15394.

It is an arithmetic number, because the mean of its divisors is an integer number (5750640).

Almost surely, 2^118232140 is an apocalyptic number.

118232140 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 118232140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138015360).

118232140 is an abundant number, since it is smaller than the sum of its proper divisors (157798580).

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

118232140 is a wasteful number, since it uses less digits than its factorization.

118232140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14722 (or 14720 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 118232140 is about 10873.4603507807. The cubic root of 118232140 is about 490.8082454239.

Adding to 118232140 its reverse (41232811), we get a palindrome (159464951).

The spelling of 118232140 in words is "one hundred eighteen million, two hundred thirty-two thousand, one hundred forty".