2057684 has 12 divisors (see below), whose sum is σ = 3662400. Its totient is φ = 1011288.

The previous prime is 2057683. The next prime is 2057689. The reversal of 2057684 is 4867502.

It is a self number, because there is not a number n which added to its sum of digits gives 2057684.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2057683) 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 3 ways as a sum of consecutive naturals, for example, 4124 + ... + 4595.

It is an arithmetic number, because the mean of its divisors is an integer number (305200).

2^2057684 is an apocalyptic number.

It is an amenable number.

2057684 is a deficient number, since it is larger than the sum of its proper divisors (1604716).

2057684 is a wasteful number, since it uses less digits than its factorization.

2057684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8782 (or 8780 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 2057684 is about 1434.4629657123. The cubic root of 2057684 is about 127.1919308463.

The spelling of 2057684 in words is "two million, fifty-seven thousand, six hundred eighty-four".