2857431460 has 24 divisors (see below), whose sum is σ = 6462191736. Its totient is φ = 1055051520.

The previous prime is 2857431443. The next prime is 2857431461. The reversal of 2857431460 is 641347582.

It can be written as a sum of positive squares in 4 ways, for example, as 100761444 + 2756670016 = 10038^2 + 52504^2 .

It is not an unprimeable number, because it can be changed into a prime (2857431461) 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, 5494801 + ... + 5495320.

It is an arithmetic number, because the mean of its divisors is an integer number (269257989).

Almost surely, 2^2857431460 is an apocalyptic number.

2857431460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2857431460 is an abundant number, since it is smaller than the sum of its proper divisors (3604760276).

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

2857431460 is a wasteful number, since it uses less digits than its factorization.

2857431460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10990143 (or 10990141 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 2857431460 is about 53454.9479468459. The cubic root of 2857431460 is about 1419.0311880063.

The spelling of 2857431460 in words is "two billion, eight hundred fifty-seven million, four hundred thirty-one thousand, four hundred sixty".