117940536 has 160 divisors (see below), whose sum is σ = 382631040. Its totient is φ = 33382368.

The previous prime is 117940519. The next prime is 117940549. The reversal of 117940536 is 635049711.

117940536 is a `hidden beast` number, since 11 + 79 + 40 + 536 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 117940536.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1102195 + ... + 1102301.

It is an arithmetic number, because the mean of its divisors is an integer number (2391444).

Almost surely, 2^117940536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117940536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191315520).

117940536 is an abundant number, since it is smaller than the sum of its proper divisors (264690504).

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

117940536 is an frugal number, since it uses more digits than its factorization.

117940536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 117940536 is about 10860.0430938372. The cubic root of 117940536 is about 490.4044086086.

The spelling of 117940536 in words is "one hundred seventeen million, nine hundred forty thousand, five hundred thirty-six".