2116997140 has 24 divisors (see below), whose sum is σ = 4487247072. Its totient is φ = 838884000.

The previous prime is 2116997137. The next prime is 2116997147. The reversal of 2116997140 is 417996112.

It is a junction number, because it is equal to n+sod(n) for n = 2116997093 and 2116997102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2116997147) 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, 492486 + ... + 496765.

It is an arithmetic number, because the mean of its divisors is an integer number (186968628).

Almost surely, 2^2116997140 is an apocalyptic number.

2116997140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2116997140 is an abundant number, since it is smaller than the sum of its proper divisors (2370249932).

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

2116997140 is a wasteful number, since it uses less digits than its factorization.

2116997140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989367 (or 989365 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 2116997140 is about 46010.8372016854. The cubic root of 2116997140 is about 1284.0248351029.

The spelling of 2116997140 in words is "two billion, one hundred sixteen million, nine hundred ninety-seven thousand, one hundred forty".