2001396 has 12 divisors (see below), whose sum is σ = 4669952. Its totient is φ = 667128.

The previous prime is 2001371. The next prime is 2001397. The reversal of 2001396 is 6931002.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 83380 + ... + 83403.

2^2001396 is an apocalyptic number.

It is an amenable number.

2001396 is an abundant number, since it is smaller than the sum of its proper divisors (2668556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2001396 is a wasteful number, since it uses less digits than its factorization.

2001396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166790 (or 166788 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 2001396 is about 1414.7070368101. The cubic root of 2001396 is about 126.0214123348.

Adding to 2001396 its reverse (6931002), we get a palindrome (8932398).

It can be divided in two parts, 200 and 1396, that added together give a triangular number (1596 = T₅₆).

The spelling of 2001396 in words is "two million, one thousand, three hundred ninety-six".