2057985 has 48 divisors (see below), whose sum is σ = 3931200. Its totient is φ = 991872.

The previous prime is 2057981. The next prime is 2057987. The reversal of 2057985 is 5897502.

2057985 is a `hidden beast` number, since 2 + 0 + 579 + 85 = 666.

It is not a de Polignac number, because 2057985 - 2² = 2057981 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2057981) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 24754 + ... + 24836.

It is an arithmetic number, because the mean of its divisors is an integer number (81900).

2^2057985 is an apocalyptic number.

It is an amenable number.

2057985 is a deficient number, since it is larger than the sum of its proper divisors (1873215).

2057985 is a wasteful number, since it uses less digits than its factorization.

2057985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 2057985 is about 1434.5678791887. The cubic root of 2057985 is about 127.1981324634.

The spelling of 2057985 in words is "two million, fifty-seven thousand, nine hundred eighty-five".