2113820340 has 24 divisors (see below), whose sum is σ = 5918697120. Its totient is φ = 563685408.

The previous prime is 2113820327. The next prime is 2113820363. The reversal of 2113820340 is 430283112.

It is a self number, because there is not a number n which added to its sum of digits gives 2113820340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17615110 + ... + 17615229.

It is an arithmetic number, because the mean of its divisors is an integer number (246612380).

Almost surely, 2^2113820340 is an apocalyptic number.

2113820340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2113820340 is an abundant number, since it is smaller than the sum of its proper divisors (3804876780).

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

2113820340 is a wasteful number, since it uses less digits than its factorization.

2113820340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35230351 (or 35230349 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 2113820340 is about 45976.3019391512. The cubic root of 2113820340 is about 1283.3822374497.

The spelling of 2113820340 in words is "two billion, one hundred thirteen million, eight hundred twenty thousand, three hundred forty".