117507840 has 144 divisors (see below), whose sum is σ = 381459456. Its totient is φ = 30822400.

The previous prime is 117507821. The next prime is 117507869. The reversal of 117507840 is 48705711.

It is a super-2 number, since 2×117507840² = 27616184922931200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 272425 + ... + 272855.

It is an arithmetic number, because the mean of its divisors is an integer number (2649024).

Almost surely, 2^117507840 is an apocalyptic number.

117507840 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 117507840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190729728).

117507840 is an abundant number, since it is smaller than the sum of its proper divisors (263951616).

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

117507840 is an equidigital number, since it uses as much as digits as its factorization.

117507840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526 (or 512 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 33.

The square root of 117507840 is about 10840.1033205408. The cubic root of 117507840 is about 489.8039476688.

The spelling of 117507840 in words is "one hundred seventeen million, five hundred seven thousand, eight hundred forty".