118128240 has 160 divisors (see below), whose sum is σ = 430954560. Its totient is φ = 29638656.

The previous prime is 118128239. The next prime is 118128247. The reversal of 118128240 is 42821811.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118128247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35112 + ... + 38328.

It is an arithmetic number, because the mean of its divisors is an integer number (2693466).

Almost surely, 2^118128240 is an apocalyptic number.

118128240 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 118128240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215477280).

118128240 is an abundant number, since it is smaller than the sum of its proper divisors (312826320).

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

118128240 is a wasteful number, since it uses less digits than its factorization.

118128240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3256 (or 3244 counting only the distinct ones).

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

The square root of 118128240 is about 10868.6816127808. The cubic root of 118128240 is about 490.6644325211.

The spelling of 118128240 in words is "one hundred eighteen million, one hundred twenty-eight thousand, two hundred forty".