2857272730 has 16 divisors (see below), whose sum is σ = 5538713544. Its totient is φ = 1054992960.

The previous prime is 2857272707. The next prime is 2857272731. The reversal of 2857272730 is 372727582.

It can be written as a sum of positive squares in 4 ways, for example, as 1112289201 + 1744983529 = 33351^2 + 41773^2 .

It is not an unprimeable number, because it can be changed into a prime (2857272731) 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, 10989381 + ... + 10989640.

Almost surely, 2^2857272730 is an apocalyptic number.

2857272730 is a deficient number, since it is larger than the sum of its proper divisors (2681440814).

2857272730 is a wasteful number, since it uses less digits than its factorization.

2857272730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21979041.

The product of its (nonzero) digits is 329280, while the sum is 43.

The square root of 2857272730 is about 53453.4632180180. The cubic root of 2857272730 is about 1419.0049118448.

The spelling of 2857272730 in words is "two billion, eight hundred fifty-seven million, two hundred seventy-two thousand, seven hundred thirty".