117907488 has 144 divisors (see below), whose sum is σ = 354987360. Its totient is φ = 38486016.

The previous prime is 117907481. The next prime is 117907507. The reversal of 117907488 is 884709711.

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (117907481) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 458656 + ... + 458912.

It is an arithmetic number, because the mean of its divisors is an integer number (2465190).

Almost surely, 2^117907488 is an apocalyptic number.

117907488 is a gapful number since it is divisible by the number (18) 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 117907488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177493680).

117907488 is an abundant number, since it is smaller than the sum of its proper divisors (237079872).

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

117907488 is an equidigital number, since it uses as much as digits as its factorization.

117907488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 45.

The square root of 117907488 is about 10858.5214463112. The cubic root of 117907488 is about 490.3585990861.

The spelling of 117907488 in words is "one hundred seventeen million, nine hundred seven thousand, four hundred eighty-eight".