116917640 has 64 divisors (see below), whose sum is σ = 316483200. Its totient is φ = 37974528.

The previous prime is 116917627. The next prime is 116917643. The reversal of 116917640 is 46719611.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 116917640.

It is not an unprimeable number, because it can be changed into a prime (116917643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5669 + ... + 16308.

It is an arithmetic number, because the mean of its divisors is an integer number (4945050).

Almost surely, 2^116917640 is an apocalyptic number.

116917640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

116917640 is an abundant number, since it is smaller than the sum of its proper divisors (199565560).

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

116917640 is a wasteful number, since it uses less digits than its factorization.

116917640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22014 (or 22010 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 116917640 is about 10812.8460638261. The cubic root of 116917640 is about 488.9825340204.

The spelling of 116917640 in words is "one hundred sixteen million, nine hundred seventeen thousand, six hundred forty".