2001036 has 36 divisors (see below), whose sum is σ = 4968488. Its totient is φ = 626688.

The previous prime is 2000989. The next prime is 2001037. The reversal of 2001036 is 6301002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001037) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3180 + ... + 3756.

2^2001036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2001036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2484244).

2001036 is an abundant number, since it is smaller than the sum of its proper divisors (2967452).

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

2001036 is a wasteful number, since it uses less digits than its factorization.

2001036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618 (or 599 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 2001036 is about 1414.5797962646. The cubic root of 2001036 is about 126.0138558711.

2001036 divided by its sum of digits (12) gives a triangular number (166753 = T₅₇₇).

Subtracting from 2001036 its product of nonzero digits (36), we obtain a triangular number (2001000 = T₂₀₀₀).

Adding to 2001036 its reverse (6301002), we get a palindrome (8302038).

The spelling of 2001036 in words is "two million, one thousand, thirty-six".