2041685 has 4 divisors (see below), whose sum is σ = 2450028. Its totient is φ = 1633344.

The previous prime is 2041681. The next prime is 2041693. The reversal of 2041685 is 5861402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1623076 + 418609 = 1274^2 + 647^2 .

It is a cyclic number.

It is not a de Polignac number, because 2041685 - 2² = 2041681 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2041681) 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, 204164 + ... + 204173.

It is an arithmetic number, because the mean of its divisors is an integer number (612507).

2^2041685 is an apocalyptic number.

It is an amenable number.

2041685 is a deficient number, since it is larger than the sum of its proper divisors (408343).

2041685 is an equidigital number, since it uses as much as digits as its factorization.

2041685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408342.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 2041685 is about 1428.8754319394. The cubic root of 2041685 is about 126.8614232360.

The spelling of 2041685 in words is "two million, forty-one thousand, six hundred eighty-five".