117228188 has 54 divisors (see below), whose sum is σ = 262363248. Its totient is φ = 45664080.

The previous prime is 117228161. The next prime is 117228193. The reversal of 117228188 is 881822711.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 21245 + ... + 26187.

Almost surely, 2^117228188 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 117228188, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131181624).

117228188 is an abundant number, since it is smaller than the sum of its proper divisors (145135060).

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

117228188 is a wasteful number, since it uses less digits than its factorization.

117228188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4983 (or 4963 counting only the distinct ones).

The product of its digits is 14336, while the sum is 38.

The square root of 117228188 is about 10827.1966824289. The cubic root of 117228188 is about 489.4150843738.

The spelling of 117228188 in words is "one hundred seventeen million, two hundred twenty-eight thousand, one hundred eighty-eight".