117842120 has 64 divisors (see below), whose sum is σ = 290787840. Its totient is φ = 42624000.

The previous prime is 117842117. The next prime is 117842149. The reversal of 117842120 is 21248711.

It is a self number, because there is not a number n which added to its sum of digits gives 117842120.

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, 97520 + ... + 98720.

It is an arithmetic number, because the mean of its divisors is an integer number (4543560).

Almost surely, 2^117842120 is an apocalyptic number.

117842120 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 117842120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145393920).

117842120 is an abundant number, since it is smaller than the sum of its proper divisors (172945720).

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

117842120 is a wasteful number, since it uses less digits than its factorization.

117842120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1446 (or 1442 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 26.

The square root of 117842120 is about 10855.5110427838. The cubic root of 117842120 is about 490.2679639426.

The spelling of 117842120 in words is "one hundred seventeen million, eight hundred forty-two thousand, one hundred twenty".