2857804056 has 48 divisors (see below), whose sum is σ = 7765157400. Its totient is φ = 949491072.

The previous prime is 2857804051. The next prime is 2857804093. The reversal of 2857804056 is 6504087582.

2857804056 is a `hidden beast` number, since 28 + 578 + 0 + 4 + 0 + 56 = 666.

It is a super-2 number, since 2×2857804056² = 16334088044980102272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2857804051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42541 + ... + 86748.

Almost surely, 2^2857804056 is an apocalyptic number.

It is an amenable number.

2857804056 is an abundant number, since it is smaller than the sum of its proper divisors (4907353344).

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

2857804056 is a wasteful number, since it uses less digits than its factorization.

2857804056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129608 (or 129601 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The square root of 2857804056 is about 53458.4329736666. The cubic root of 2857804056 is about 1419.0928637189.

The spelling of 2857804056 in words is "two billion, eight hundred fifty-seven million, eight hundred four thousand, fifty-six".