117308736 has 168 divisors, whose sum is σ = 367974880. Its totient is φ = 36951552.

The previous prime is 117308713. The next prime is 117308747. The reversal of 117308736 is 637803711.

It is a super-2 number, since 2×117308736² = 27522679083835392, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 117308736.

It is a congruent number.

It is an unprimeable number.

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, 295290 + ... + 295686.

Almost surely, 2^117308736 is an apocalyptic number.

117308736 is a gapful number since it is divisible by the number (16) 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 117308736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183987440).

117308736 is an abundant number, since it is smaller than the sum of its proper divisors (250666144).

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

117308736 is an equidigital number, since it uses as much as digits as its factorization.

117308736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443 (or 421 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 117308736 is about 10830.9157507572. The cubic root of 117308736 is about 489.5271517911.

The spelling of 117308736 in words is "one hundred seventeen million, three hundred eight thousand, seven hundred thirty-six".