118657872 has 80 divisors (see below), whose sum is σ = 344898560. Its totient is φ = 39540960.

The previous prime is 118657849. The next prime is 118657883. The reversal of 118657872 is 278756811.

It is a happy number.

118657872 is a `hidden beast` number, since 1 + 1 + 8 + 6 + 578 + 72 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33297 + ... + 36687.

It is an arithmetic number, because the mean of its divisors is an integer number (4311232).

Almost surely, 2^118657872 is an apocalyptic number.

118657872 is a gapful number since it is divisible by the number (12) 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 118657872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172449280).

118657872 is an abundant number, since it is smaller than the sum of its proper divisors (226240688).

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

118657872 is an frugal number, since it uses more digits than its factorization.

118657872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3420 (or 3396 counting only the distinct ones).

The product of its digits is 188160, while the sum is 45.

The square root of 118657872 is about 10893.0194161215. The cubic root of 118657872 is about 491.3966428946.

The spelling of 118657872 in words is "one hundred eighteen million, six hundred fifty-seven thousand, eight hundred seventy-two".