117109920 has 96 divisors (see below), whose sum is σ = 388342080. Its totient is φ = 29583360.

The previous prime is 117109877. The next prime is 117109933. The reversal of 117109920 is 29901711.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2700 + ... + 15540.

It is an arithmetic number, because the mean of its divisors is an integer number (4045230).

Almost surely, 2^117109920 is an apocalyptic number.

117109920 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 117109920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194171040).

117109920 is an abundant number, since it is smaller than the sum of its proper divisors (271232160).

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

117109920 is a wasteful number, since it uses less digits than its factorization.

117109920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12878 (or 12870 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 30.

The square root of 117109920 is about 10821.7336873534. The cubic root of 117109920 is about 489.2504435985.

The spelling of 117109920 in words is "one hundred seventeen million, one hundred nine thousand, nine hundred twenty".