2112836720 has 20 divisors (see below), whose sum is σ = 4912345560. Its totient is φ = 845134656.

The previous prime is 2112836681. The next prime is 2112836729. The reversal of 2112836720 is 276382112.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112836729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13205150 + ... + 13205309.

It is an arithmetic number, because the mean of its divisors is an integer number (245617278).

Almost surely, 2^2112836720 is an apocalyptic number.

2112836720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112836720 is an abundant number, since it is smaller than the sum of its proper divisors (2799508840).

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

2112836720 is a wasteful number, since it uses less digits than its factorization.

2112836720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26410472 (or 26410466 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 2112836720 is about 45965.6036618687. The cubic root of 2112836720 is about 1283.1831419594.

The spelling of 2112836720 in words is "two billion, one hundred twelve million, eight hundred thirty-six thousand, seven hundred twenty".