2728844443 has 8 divisors (see below), whose sum is σ = 2994204528. Its totient is φ = 2471405664.

The previous prime is 2728844441. The next prime is 2728844483. The reversal of 2728844443 is 3444488272.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2728844443 - 2¹ = 2728844441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2728844393 and 2728844402.

It is not an unprimeable number, because it can be changed into a prime (2728844441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1979605 + ... + 1980982.

It is an arithmetic number, because the mean of its divisors is an integer number (374275566).

Almost surely, 2^2728844443 is an apocalyptic number.

2728844443 is a deficient number, since it is larger than the sum of its proper divisors (265360085).

2728844443 is a wasteful number, since it uses less digits than its factorization.

2728844443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3960653.

The product of its digits is 1376256, while the sum is 46.

The square root of 2728844443 is about 52238.3426517343. The cubic root of 2728844443 is about 1397.4177644333.

The spelling of 2728844443 in words is "two billion, seven hundred twenty-eight million, eight hundred forty-four thousand, four hundred forty-three".