2728705872 has 80 divisors (see below), whose sum is σ = 7113562560. Its totient is φ = 901303296.

The previous prime is 2728705831. The next prime is 2728705873. The reversal of 2728705872 is 2785078272.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2728705873) 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, 3008043 + ... + 3008949.

It is an arithmetic number, because the mean of its divisors is an integer number (88919532).

Almost surely, 2^2728705872 is an apocalyptic number.

It is an amenable number.

2728705872 is an abundant number, since it is smaller than the sum of its proper divisors (4384856688).

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

2728705872 is a wasteful number, since it uses less digits than its factorization.

2728705872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1420 (or 1414 counting only the distinct ones).

The product of its (nonzero) digits is 878080, while the sum is 48.

The square root of 2728705872 is about 52237.0163007039. The cubic root of 2728705872 is about 1397.3941103606.

The spelling of 2728705872 in words is "two billion, seven hundred twenty-eight million, seven hundred five thousand, eight hundred seventy-two".