2857056 has 24 divisors (see below), whose sum is σ = 7500024. Its totient is φ = 952320.

The previous prime is 2857039. The next prime is 2857061. The reversal of 2857056 is 6507582.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-3 number, since 3×2857056³ = 69964464333932494848, which contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14785 + ... + 14976.

It is an arithmetic number, because the mean of its divisors is an integer number (312501).

2^2857056 is an apocalyptic number.

It is an amenable number.

2857056 is an abundant number, since it is smaller than the sum of its proper divisors (4642968).

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

2857056 is a wasteful number, since it uses less digits than its factorization.

2857056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29774 (or 29766 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 2857056 is about 1690.2828165724. The cubic root of 2857056 is about 141.8969032793.

The spelling of 2857056 in words is "two million, eight hundred fifty-seven thousand, fifty-six".