2981721360 has 160 divisors (see below), whose sum is σ = 9745661952. Its totient is φ = 753016320.

The previous prime is 2981721317. The next prime is 2981721371. The reversal of 2981721360 is 631271892.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 345417 + ... + 353943.

Almost surely, 2^2981721360 is an apocalyptic number.

2981721360 is a gapful number since it is divisible by the number (20) 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 2981721360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4872830976).

2981721360 is an abundant number, since it is smaller than the sum of its proper divisors (6763940592).

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

2981721360 is a wasteful number, since it uses less digits than its factorization.

2981721360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8621 (or 8615 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 2981721360 is about 54605.1404173636. The cubic root of 2981721360 is about 1439.3144499121.

The spelling of 2981721360 in words is "two billion, nine hundred eighty-one million, seven hundred twenty-one thousand, three hundred sixty".