2001885 has 16 divisors (see below), whose sum is σ = 3290496. Its totient is φ = 1038528.

The previous prime is 2001847. The next prime is 2001911. The reversal of 2001885 is 5881002.

It is not a de Polignac number, because 2001885 - 2¹⁶ = 1936349 is a prime.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1249 + ... + 2358.

It is an arithmetic number, because the mean of its divisors is an integer number (205656).

2^2001885 is an apocalyptic number.

It is an amenable number.

2001885 is a deficient number, since it is larger than the sum of its proper divisors (1288611).

2001885 is a wasteful number, since it uses less digits than its factorization.

2001885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3652.

The product of its (nonzero) digits is 640, while the sum is 24.

The square root of 2001885 is about 1414.8798535565. The cubic root of 2001885 is about 126.0316750801.

Adding to 2001885 its reverse (5881002), we get a palindrome (7882887).

The spelling of 2001885 in words is "two million, one thousand, eight hundred eighty-five".