117715940 has 24 divisors (see below), whose sum is σ = 252954240. Its totient is φ = 45991008.

The previous prime is 117715937. The next prime is 117715951. The reversal of 117715940 is 49517711.

It is a self number, because there is not a number n which added to its sum of digits gives 117715940.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67580 + ... + 69299.

It is an arithmetic number, because the mean of its divisors is an integer number (10539760).

Almost surely, 2^117715940 is an apocalyptic number.

117715940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117715940 is an abundant number, since it is smaller than the sum of its proper divisors (135238300).

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

117715940 is a wasteful number, since it uses less digits than its factorization.

117715940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136931 (or 136929 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 35.

The square root of 117715940 is about 10849.6976916410. The cubic root of 117715940 is about 490.0929158797.

The spelling of 117715940 in words is "one hundred seventeen million, seven hundred fifteen thousand, nine hundred forty".