117904128 has 36 divisors (see below), whose sum is σ = 313798968. Its totient is φ = 39301120.

The previous prime is 117904123. The next prime is 117904183. The reversal of 117904128 is 821409711.

It is not an unprimeable number, because it can be changed into a prime (117904123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75993 + ... + 77528.

It is an arithmetic number, because the mean of its divisors is an integer number (8716638).

Almost surely, 2^117904128 is an apocalyptic number.

It is an amenable number.

117904128 is an abundant number, since it is smaller than the sum of its proper divisors (195894840).

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

117904128 is an equidigital number, since it uses as much as digits as its factorization.

117904128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153540 (or 153526 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 33.

The square root of 117904128 is about 10858.3667280121. The cubic root of 117904128 is about 490.3539411390.

The spelling of 117904128 in words is "one hundred seventeen million, nine hundred four thousand, one hundred twenty-eight".