117288270 has 256 divisors, whose sum is σ = 380712960. Its totient is φ = 25344000.

The previous prime is 117288217. The next prime is 117288271. The reversal of 117288270 is 72882711.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117288271) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1161220 + ... + 1161320.

It is an arithmetic number, because the mean of its divisors is an integer number (1487160).

Almost surely, 2^117288270 is an apocalyptic number.

117288270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 117288270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190356480).

117288270 is an abundant number, since it is smaller than the sum of its proper divisors (263424690).

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

117288270 is a wasteful number, since it uses less digits than its factorization.

117288270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168 (or 162 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 36.

The square root of 117288270 is about 10829.9709140884. The cubic root of 117288270 is about 489.4986820576.

It can be divided in two parts, 1 and 17288270, that added together give a palindrome (17288271).

The spelling of 117288270 in words is "one hundred seventeen million, two hundred eighty-eight thousand, two hundred seventy".