2840128032 has 96 divisors (see below), whose sum is σ = 8701765632. Its totient is φ = 794191104.

The previous prime is 2840128003. The next prime is 2840128033. The reversal of 2840128032 is 2308210482.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (2840128033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13378 + ... + 76545.

It is an arithmetic number, because the mean of its divisors is an integer number (90643392).

Almost surely, 2^2840128032 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 2840128032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4350882816).

2840128032 is an abundant number, since it is smaller than the sum of its proper divisors (5861637600).

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

2840128032 is a wasteful number, since it uses less digits than its factorization.

2840128032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89990 (or 89982 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 2840128032 is about 53292.8516031935. The cubic root of 2840128032 is about 1416.1610305550.

The spelling of 2840128032 in words is "two billion, eight hundred forty million, one hundred twenty-eight thousand, thirty-two".