117980928 has 216 divisors, whose sum is σ = 381533040. Its totient is φ = 35942400.

The previous prime is 117980923. The next prime is 117980957. The reversal of 117980928 is 829089711.

It is a tau number, because it is divible by the number of its divisors (216).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117980923) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1168078 + ... + 1168178.

Almost surely, 2^117980928 is an apocalyptic number.

117980928 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117980928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190766520).

117980928 is an abundant number, since it is smaller than the sum of its proper divisors (263552112).

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

117980928 is a wasteful number, since it uses less digits than its factorization.

117980928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 45.

The square root of 117980928 is about 10861.9025957702. The cubic root of 117980928 is about 490.4603864051.

The spelling of 117980928 in words is "one hundred seventeen million, nine hundred eighty thousand, nine hundred twenty-eight".