2980991728 has 160 divisors (see below), whose sum is σ = 7276534272. Its totient is φ = 1163289600.

The previous prime is 2980991723. The next prime is 2980991749. The reversal of 2980991728 is 8271990892.

2980991728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2980991723) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1946323 + ... + 1947853.

Almost surely, 2^2980991728 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 2980991728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3638267136).

2980991728 is an abundant number, since it is smaller than the sum of its proper divisors (4295542544).

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

2980991728 is a wasteful number, since it uses less digits than its factorization.

2980991728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623 (or 1617 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 55.

The square root of 2980991728 is about 54598.4590258736. The cubic root of 2980991728 is about 1439.1970394831.

The spelling of 2980991728 in words is "two billion, nine hundred eighty million, nine hundred ninety-one thousand, seven hundred twenty-eight".