99680140 has 48 divisors (see below), whose sum is σ = 240028992. Its totient is φ = 34062336.

The previous prime is 99680131. The next prime is 99680177. The reversal of 99680140 is 4108699.

99680140 is a nontrivial binomial coefficient, being equal to C(14120, 2).

It is a super-2 number, since 2×99680140² = 19872260620839200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 99680140.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48412 + ... + 50428.

It is an arithmetic number, because the mean of its divisors is an integer number (5000604).

Almost surely, 2^99680140 is an apocalyptic number.

99680140 is the 14119-th triangular number and also the 7060-th hexagonal number.

99680140 is the 4707-th centered nonagonal number.

It is an amenable number.

99680140 is an abundant number, since it is smaller than the sum of its proper divisors (140348852).

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

99680140 is a wasteful number, since it uses less digits than its factorization.

99680140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2386 (or 2384 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 99680140 is about 9983.9941907034. The cubic root of 99680140 is about 463.6634685725.

The spelling of 99680140 in words is "ninety-nine million, six hundred eighty thousand, one hundred forty".