2810728272 has 80 divisors (see below), whose sum is σ = 7998202368. Its totient is φ = 843450240.

The previous prime is 2810728253. The next prime is 2810728279. The reversal of 2810728272 is 2728270182.

It is a self number, because there is not a number n which added to its sum of digits gives 2810728272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2810728279) 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, 28543 + ... + 80225.

Almost surely, 2^2810728272 is an apocalyptic number.

2810728272 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2810728272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3999101184).

2810728272 is an abundant number, since it is smaller than the sum of its proper divisors (5187474096).

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

2810728272 is a wasteful number, since it uses less digits than its factorization.

2810728272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51808 (or 51802 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 39.

The square root of 2810728272 is about 53016.3019457223. The cubic root of 2810728272 is about 1411.2575793039.

The spelling of 2810728272 in words is "two billion, eight hundred ten million, seven hundred twenty-eight thousand, two hundred seventy-two".