2001393 has 24 divisors (see below), whose sum is σ = 3115008. Its totient is φ = 1233792.

The previous prime is 2001371. The next prime is 2001397. The reversal of 2001393 is 3931002.

It is not a de Polignac number, because 2001393 - 2⁵ = 2001361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2001397) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15696 + ... + 15822.

It is an arithmetic number, because the mean of its divisors is an integer number (129792).

2^2001393 is an apocalyptic number.

It is an amenable number.

2001393 is a deficient number, since it is larger than the sum of its proper divisors (1113615).

2001393 is a wasteful number, since it uses less digits than its factorization.

2001393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253 (or 250 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 2001393 is about 1414.7059765195. The cubic root of 2001393 is about 126.0213493680.

Adding to 2001393 its reverse (3931002), we get a palindrome (5932395).

The spelling of 2001393 in words is "two million, one thousand, three hundred ninety-three".