118644120 has 288 divisors, whose sum is σ = 465847200. Its totient is φ = 25648128.

The previous prime is 118644107. The next prime is 118644137. The reversal of 118644120 is 21446811.

It is a happy number.

118644120 is a `hidden beast` number, since 1 + 1 + 8 + 644 + 12 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1333036 + ... + 1333124.

It is an arithmetic number, because the mean of its divisors is an integer number (1617525).

Almost surely, 2^118644120 is an apocalyptic number.

118644120 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 118644120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232923600).

118644120 is an abundant number, since it is smaller than the sum of its proper divisors (347203080).

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

118644120 is a wasteful number, since it uses less digits than its factorization.

118644120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 118644120 is about 10892.3881678905. The cubic root of 118644120 is about 491.3776584884.

The spelling of 118644120 in words is "one hundred eighteen million, six hundred forty-four thousand, one hundred twenty".