117090228 has 24 divisors (see below), whose sum is σ = 274280832. Its totient is φ = 38877184.

The previous prime is 117090227. The next prime is 117090241. The reversal of 117090228 is 822090711.

It is a junction number, because it is equal to n+sod(n) for n = 117090195 and 117090204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117090221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15900 + ... + 22067.

It is an arithmetic number, because the mean of its divisors is an integer number (11428368).

Almost surely, 2^117090228 is an apocalyptic number.

It is an amenable number.

117090228 is an abundant number, since it is smaller than the sum of its proper divisors (157190604).

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

117090228 is a wasteful number, since it uses less digits than its factorization.

117090228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38231 (or 38229 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 117090228 is about 10820.8238133702. The cubic root of 117090228 is about 489.2230196200.

The spelling of 117090228 in words is "one hundred seventeen million, ninety thousand, two hundred twenty-eight".