117742688 has 72 divisors (see below), whose sum is σ = 274294944. Its totient is φ = 49593600.

The previous prime is 117742687. The next prime is 117742711. The reversal of 117742688 is 886247711.

117742688 is nontrivially palindromic in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117742687) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95033 + ... + 96263.

It is an arithmetic number, because the mean of its divisors is an integer number (3809652).

Almost surely, 2^117742688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117742688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137147472).

117742688 is an abundant number, since it is smaller than the sum of its proper divisors (156552256).

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

117742688 is a wasteful number, since it uses less digits than its factorization.

117742688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316 (or 1301 counting only the distinct ones).

The product of its digits is 150528, while the sum is 44.

The square root of 117742688 is about 10850.9302826993. The cubic root of 117742688 is about 490.1300335166.

The spelling of 117742688 in words is "one hundred seventeen million, seven hundred forty-two thousand, six hundred eighty-eight".