2856744 has 48 divisors (see below), whose sum is σ = 8442720. Its totient is φ = 865440.

The previous prime is 2856683. The next prime is 2856773. The reversal of 2856744 is 4476582.

2856744 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a d-powerful number, because it can be written as 2¹⁸ + 8² + 5⁸ + 6⁸ + 7 + 4⁹ + 4⁹ .

It is a junction number, because it is equal to n+sod(n) for n = 2856699 and 2856708.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1012 + ... + 2595.

It is an arithmetic number, because the mean of its divisors is an integer number (175890).

2^2856744 is an apocalyptic number.

2856744 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2856744 is an abundant number, since it is smaller than the sum of its proper divisors (5585976).

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

2856744 is a wasteful number, since it uses less digits than its factorization.

2856744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3630 (or 3623 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 2856744 is about 1690.1905218052. The cubic root of 2856744 is about 141.8917378869.

It can be divided in two parts, 2856 and 744, that added together give a square (3600 = 60²).

The spelling of 2856744 in words is "two million, eight hundred fifty-six thousand, seven hundred forty-four".