117591288 has 64 divisors (see below), whose sum is σ = 307152000. Its totient is φ = 37468032.

The previous prime is 117591269. The next prime is 117591293. The reversal of 117591288 is 882195711.

It is a super-2 number, since 2×117591288² = 27655422026997888, which contains 22 as substring.

It is a congruent number.

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, 73683 + ... + 75261.

It is an arithmetic number, because the mean of its divisors is an integer number (4799250).

Almost surely, 2^117591288 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 117591288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153576000).

117591288 is an abundant number, since it is smaller than the sum of its proper divisors (189560712).

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

117591288 is a wasteful number, since it uses less digits than its factorization.

117591288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1724 (or 1720 counting only the distinct ones).

The product of its digits is 40320, while the sum is 42.

The square root of 117591288 is about 10843.9516782398. The cubic root of 117591288 is about 489.9198647240.

The spelling of 117591288 in words is "one hundred seventeen million, five hundred ninety-one thousand, two hundred eighty-eight".