2105447892 has 48 divisors (see below), whose sum is σ = 5209468992. Its totient is φ = 659545600.

The previous prime is 2105447849. The next prime is 2105447917. The reversal of 2105447892 is 2987445012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135643 + ... + 150365.

It is an arithmetic number, because the mean of its divisors is an integer number (108530604).

Almost surely, 2^2105447892 is an apocalyptic number.

It is an amenable number.

2105447892 is an abundant number, since it is smaller than the sum of its proper divisors (3104021100).

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

2105447892 is a wasteful number, since it uses less digits than its factorization.

2105447892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15448 (or 15446 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 2105447892 is about 45885.1598231934. The cubic root of 2105447892 is about 1281.6855828944.

The spelling of 2105447892 in words is "two billion, one hundred five million, four hundred forty-seven thousand, eight hundred ninety-two".