2810728244 has 6 divisors (see below), whose sum is σ = 4918774434. Its totient is φ = 1405364120.

The previous prime is 2810728241. The next prime is 2810728253. The reversal of 2810728244 is 4428270182.

It can be written as a sum of positive squares in only one way, i.e., 1516167844 + 1294560400 = 38938^2 + 35980^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2810728198 and 2810728207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2810728241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 351341027 + ... + 351341034.

It is an arithmetic number, because the mean of its divisors is an integer number (819795739).

Almost surely, 2^2810728244 is an apocalyptic number.

It is an amenable number.

2810728244 is a deficient number, since it is larger than the sum of its proper divisors (2108046190).

2810728244 is a wasteful number, since it uses less digits than its factorization.

2810728244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702682065 (or 702682063 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 38.

The square root of 2810728244 is about 53016.3016816526. The cubic root of 2810728244 is about 1411.2575746176.

The spelling of 2810728244 in words is "two billion, eight hundred ten million, seven hundred twenty-eight thousand, two hundred forty-four".