2857020722 has 4 divisors (see below), whose sum is σ = 4285531086. Its totient is φ = 1428510360.

The previous prime is 2857020721. The next prime is 2857020737. The reversal of 2857020722 is 2270207582.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2268521641 + 588499081 = 47629^2 + 24259^2 .

It is not an unprimeable number, because it can be changed into a prime (2857020721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 714255179 + ... + 714255182.

Almost surely, 2^2857020722 is an apocalyptic number.

2857020722 is a deficient number, since it is larger than the sum of its proper divisors (1428510364).

2857020722 is a wasteful number, since it uses less digits than its factorization.

2857020722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428510363.

The product of its (nonzero) digits is 31360, while the sum is 35.

The square root of 2857020722 is about 53451.1059006266. The cubic root of 2857020722 is about 1418.9631924457.

The spelling of 2857020722 in words is "two billion, eight hundred fifty-seven million, twenty thousand, seven hundred twenty-two".