116906640 has 40 divisors (see below), whose sum is σ = 362411328. Its totient is φ = 31175040.

The previous prime is 116906623. The next prime is 116906641. The reversal of 116906640 is 46609611.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (116906641) 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, 243316 + ... + 243795.

Almost surely, 2^116906640 is an apocalyptic number.

116906640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

116906640 is an abundant number, since it is smaller than the sum of its proper divisors (245504688).

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

116906640 is a wasteful number, since it uses less digits than its factorization.

116906640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487127 (or 487121 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 116906640 is about 10812.3373976213. The cubic root of 116906640 is about 488.9671985057.

The spelling of 116906640 in words is "one hundred sixteen million, nine hundred six thousand, six hundred forty".