2031705984 has 128 divisors (see below), whose sum is σ = 6728474880. Its totient is φ = 527708160.

The previous prime is 2031705979. The next prime is 2031706007. The reversal of 2031705984 is 4895071302.

It is a tau number, because it is divible by the number of its divisors (128).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

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, 4789 + ... + 63924.

It is an arithmetic number, because the mean of its divisors is an integer number (52566210).

Almost surely, 2^2031705984 is an apocalyptic number.

2031705984 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2031705984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3364237440).

2031705984 is an abundant number, since it is smaller than the sum of its proper divisors (4696768896).

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

2031705984 is a wasteful number, since it uses less digits than its factorization.

2031705984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68748 (or 68736 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 2031705984 is about 45074.4493477180. The cubic root of 2031705984 is about 1266.5440137316.

The spelling of 2031705984 in words is "two billion, thirty-one million, seven hundred five thousand, nine hundred eighty-four".