2564782 has 16 divisors (see below), whose sum is σ = 4257072. Its totient is φ = 1149120.

The previous prime is 2564759. The next prime is 2564813. The reversal of 2564782 is 2874652.

2564782 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 808 + ... + 2404.

It is an arithmetic number, because the mean of its divisors is an integer number (266067).

2^2564782 is an apocalyptic number.

2564782 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2564782 is a deficient number, since it is larger than the sum of its proper divisors (1692290).

2564782 is a wasteful number, since it uses less digits than its factorization.

2564782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1683.

The product of its digits is 26880, while the sum is 34.

The square root of 2564782 is about 1601.4936777896. The cubic root of 2564782 is about 136.8832009292.

The spelling of 2564782 in words is "two million, five hundred sixty-four thousand, seven hundred eighty-two".