2728443239 has 8 divisors (see below), whose sum is σ = 2739340800. Its totient is φ = 2717568000.

The previous prime is 2728443229. The next prime is 2728443247. The reversal of 2728443239 is 9323448272.

2728443239 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2728443239 - 2¹² = 2728439143 is a prime.

It is a super-2 number, since 2×2728443239² = 14888805016889622242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2728443239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2728443229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264794 + ... + 274904.

It is an arithmetic number, because the mean of its divisors is an integer number (342417600).

Almost surely, 2^2728443239 is an apocalyptic number.

2728443239 is a deficient number, since it is larger than the sum of its proper divisors (10897561).

2728443239 is a wasteful number, since it uses less digits than its factorization.

2728443239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11161.

The product of its digits is 580608, while the sum is 44.

The square root of 2728443239 is about 52234.5023810891. The cubic root of 2728443239 is about 1397.3492767044.

The spelling of 2728443239 in words is "two billion, seven hundred twenty-eight million, four hundred forty-three thousand, two hundred thirty-nine".