118539840 has 56 divisors (see below), whose sum is σ = 376367040. Its totient is φ = 31610368.

The previous prime is 118539797. The next prime is 118539847. The reversal of 118539840 is 48935811.

It is not an unprimeable number, because it can be changed into a prime (118539847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60780 + ... + 62699.

It is an arithmetic number, because the mean of its divisors is an integer number (6720840).

Almost surely, 2^118539840 is an apocalyptic number.

118539840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118539840 is an abundant number, since it is smaller than the sum of its proper divisors (257827200).

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

118539840 is a wasteful number, since it uses less digits than its factorization.

118539840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123499 (or 123489 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 118539840 is about 10887.6002865645. The cubic root of 118539840 is about 491.2336539310.

The spelling of 118539840 in words is "one hundred eighteen million, five hundred thirty-nine thousand, eight hundred forty".