117168840 has 96 divisors (see below), whose sum is σ = 393120000. Its totient is φ = 30234240.

The previous prime is 117168833. The next prime is 117168841. The reversal of 117168840 is 48861711.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 117168795 and 117168804.

It is not an unprimeable number, because it can be changed into a prime (117168841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5911 + ... + 16409.

It is an arithmetic number, because the mean of its divisors is an integer number (4095000).

Almost surely, 2^117168840 is an apocalyptic number.

117168840 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 117168840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196560000).

117168840 is an abundant number, since it is smaller than the sum of its proper divisors (275951160).

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

117168840 is a wasteful number, since it uses less digits than its factorization.

117168840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10547 (or 10540 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 36.

The square root of 117168840 is about 10824.4556445116. The cubic root of 117168840 is about 489.3324799255.

The spelling of 117168840 in words is "one hundred seventeen million, one hundred sixty-eight thousand, eight hundred forty".