116643940 has 24 divisors (see below), whose sum is σ = 279945792. Its totient is φ = 39992160.

The previous prime is 116643929. The next prime is 116643949. The reversal of 116643940 is 49346611.

It is a junction number, because it is equal to n+sod(n) for n = 116643896 and 116643905.

It is not an unprimeable number, because it can be changed into a prime (116643949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 416446 + ... + 416725.

It is an arithmetic number, because the mean of its divisors is an integer number (11664408).

Almost surely, 2^116643940 is an apocalyptic number.

116643940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

116643940 is an abundant number, since it is smaller than the sum of its proper divisors (163301852).

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

116643940 is a wasteful number, since it uses less digits than its factorization.

116643940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833187 (or 833185 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 116643940 is about 10800.1824058670. The cubic root of 116643940 is about 488.6006723683.

The spelling of 116643940 in words is "one hundred sixteen million, six hundred forty-three thousand, nine hundred forty".