2105681232 has 120 divisors (see below), whose sum is σ = 5789468736. Its totient is φ = 659354112.

The previous prime is 2105681203. The next prime is 2105681273. The reversal of 2105681232 is 2321865012.

It is a self number, because there is not a number n which added to its sum of digits gives 2105681232.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2373493 + ... + 2374379.

Almost surely, 2^2105681232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2105681232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2894734368).

2105681232 is an abundant number, since it is smaller than the sum of its proper divisors (3683787504).

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

2105681232 is a wasteful number, since it uses less digits than its factorization.

2105681232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073 (or 1048 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 2105681232 is about 45887.7024048928. The cubic root of 2105681232 is about 1281.7329295053.

The spelling of 2105681232 in words is "two billion, one hundred five million, six hundred eighty-one thousand, two hundred thirty-two".