117765940 has 24 divisors (see below), whose sum is σ = 253342152. Its totient is φ = 45957120.

The previous prime is 117765917. The next prime is 117765959. The reversal of 117765940 is 49567711.

It can be written as a sum of positive squares in 4 ways, for example, as 36 + 117765904 = 6^2 + 10852^2 .

It is a junction number, because it is equal to n+sod(n) for n = 117765893 and 117765902.

It is a congruent number.

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, 70989 + ... + 72628.

It is an arithmetic number, because the mean of its divisors is an integer number (10555923).

Almost surely, 2^117765940 is an apocalyptic number.

117765940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117765940 is an abundant number, since it is smaller than the sum of its proper divisors (135576212).

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

117765940 is a wasteful number, since it uses less digits than its factorization.

117765940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143667 (or 143665 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 40.

The square root of 117765940 is about 10852.0016586803. The cubic root of 117765940 is about 490.1622952607.

The spelling of 117765940 in words is "one hundred seventeen million, seven hundred sixty-five thousand, nine hundred forty".