117518028 has 24 divisors (see below), whose sum is σ = 277967088. Its totient is φ = 38635776.

The previous prime is 117517999. The next prime is 117518033. The reversal of 117518028 is 820815711.

It is a self number, because there is not a number n which added to its sum of digits gives 117518028.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66201 + ... + 67952.

It is an arithmetic number, because the mean of its divisors is an integer number (11581962).

Almost surely, 2^117518028 is an apocalyptic number.

It is an amenable number.

117518028 is an abundant number, since it is smaller than the sum of its proper divisors (160449060).

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

117518028 is a wasteful number, since it uses less digits than its factorization.

117518028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134233 (or 134231 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 33.

The square root of 117518028 is about 10840.5732320759. The cubic root of 117518028 is about 489.8181026915.

The spelling of 117518028 in words is "one hundred seventeen million, five hundred eighteen thousand, twenty-eight".