117981632 has 28 divisors (see below), whose sum is σ = 247893840. Its totient is φ = 55520256.

The previous prime is 117981631. The next prime is 117981673. The reversal of 117981632 is 236189711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117981631) 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, 53132 + ... + 55307.

Almost surely, 2^117981632 is an apocalyptic number.

It is an amenable number.

117981632 is an abundant number, since it is smaller than the sum of its proper divisors (129912208).

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

117981632 is a wasteful number, since it uses less digits than its factorization.

117981632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108468 (or 108458 counting only the distinct ones).

The product of its digits is 18144, while the sum is 38.

The square root of 117981632 is about 10861.9350025675. The cubic root of 117981632 is about 490.4613619397.

The spelling of 117981632 in words is "one hundred seventeen million, nine hundred eighty-one thousand, six hundred thirty-two".