117988940 has 24 divisors (see below), whose sum is σ = 248482080. Its totient is φ = 47061248.

The previous prime is 117988889. The next prime is 117988961. The reversal of 117988940 is 49889711.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1037 + ... + 15396.

It is an arithmetic number, because the mean of its divisors is an integer number (10353420).

Almost surely, 2^117988940 is an apocalyptic number.

117988940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117988940 is an abundant number, since it is smaller than the sum of its proper divisors (130493140).

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

117988940 is a wasteful number, since it uses less digits than its factorization.

117988940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16801 (or 16799 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 47.

The square root of 117988940 is about 10862.2714015071. The cubic root of 117988940 is about 490.4714884246.

The spelling of 117988940 in words is "one hundred seventeen million, nine hundred eighty-eight thousand, nine hundred forty".