117970188 has 48 divisors (see below), whose sum is σ = 321291264. Its totient is φ = 32987520.

The previous prime is 117970187. The next prime is 117970211. The reversal of 117970188 is 881079711.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (117970187) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10993 + ... + 18888.

It is an arithmetic number, because the mean of its divisors is an integer number (6693568).

Almost surely, 2^117970188 is an apocalyptic number.

It is an amenable number.

117970188 is an abundant number, since it is smaller than the sum of its proper divisors (203321076).

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

117970188 is a wasteful number, since it uses less digits than its factorization.

117970188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29942 (or 29940 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 42.

The square root of 117970188 is about 10861.4081959937. The cubic root of 117970188 is about 490.4455034788.

The spelling of 117970188 in words is "one hundred seventeen million, nine hundred seventy thousand, one hundred eighty-eight".