2001236 has 12 divisors (see below), whose sum is σ = 3615360. Its totient is φ = 968280.

The previous prime is 2001229. The next prime is 2001247. The reversal of 2001236 is 6321002.

It is a self number, because there is not a number n which added to its sum of digits gives 2001236.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7946 + ... + 8193.

It is an arithmetic number, because the mean of its divisors is an integer number (301280).

2^2001236 is an apocalyptic number.

It is an amenable number.

2001236 is a deficient number, since it is larger than the sum of its proper divisors (1614124).

2001236 is a wasteful number, since it uses less digits than its factorization.

2001236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16174 (or 16172 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2001236 is about 1414.6504868695. The cubic root of 2001236 is about 126.0180540183.

Adding to 2001236 its reverse (6321002), we get a palindrome (8322238).

The spelling of 2001236 in words is "two million, one thousand, two hundred thirty-six".