2081994844 has 24 divisors (see below), whose sum is σ = 3958976000. Its totient is φ = 954393840.

The previous prime is 2081994839. The next prime is 2081994851. The reversal of 2081994844 is 4484991802.

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, 439494 + ... + 444205.

Almost surely, 2^2081994844 is an apocalyptic number.

It is an amenable number.

2081994844 is a deficient number, since it is larger than the sum of its proper divisors (1876981156).

2081994844 is a wasteful number, since it uses less digits than its factorization.

2081994844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883753 (or 883751 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 49.

The square root of 2081994844 is about 45628.8816869316. The cubic root of 2081994844 is about 1276.9088095249.

The spelling of 2081994844 in words is "two billion, eighty-one million, nine hundred ninety-four thousand, eight hundred forty-four".