2856345 has 16 divisors (see below), whose sum is σ = 4614720. Its totient is φ = 1508544.

The previous prime is 2856283. The next prime is 2856349. The reversal of 2856345 is 5436582.

It is not a de Polignac number, because 2856345 - 2¹² = 2852249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2856349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 762 + ... + 2508.

It is an arithmetic number, because the mean of its divisors is an integer number (288420).

2^2856345 is an apocalyptic number.

It is an amenable number.

2856345 is a deficient number, since it is larger than the sum of its proper divisors (1758375).

2856345 is a wasteful number, since it uses less digits than its factorization.

2856345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1864.

The product of its digits is 28800, while the sum is 33.

The square root of 2856345 is about 1690.0724836527. The cubic root of 2856345 is about 141.8851315968.

The spelling of 2856345 in words is "two million, eight hundred fifty-six thousand, three hundred forty-five".