117931400 has 48 divisors (see below), whose sum is σ = 283659300. Its totient is φ = 45543680.

The previous prime is 117931391. The next prime is 117931403. The reversal of 117931400 is 4139711.

It can be written as a sum of positive squares in 6 ways, for example, as 78818884 + 39112516 = 8878^2 + 6254^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 117931400.

It is not an unprimeable number, because it can be changed into a prime (117931403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4367 + ... + 15966.

Almost surely, 2^117931400 is an apocalyptic number.

117931400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117931400 is an abundant number, since it is smaller than the sum of its proper divisors (165727900).

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

117931400 is a wasteful number, since it uses less digits than its factorization.

117931400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20378 (or 20369 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 117931400 is about 10859.6224612092. The cubic root of 117931400 is about 490.3917455878.

The spelling of 117931400 in words is "one hundred seventeen million, nine hundred thirty-one thousand, four hundred".