2001244 has 12 divisors (see below), whose sum is σ = 4002544. Its totient is φ = 857664.

The previous prime is 2001229. The next prime is 2001247. The reversal of 2001244 is 4421002.

2001244 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35709 + ... + 35764.

2^2001244 is an apocalyptic number.

It is an amenable number.

2001244 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2001244 is a wasteful number, since it uses less digits than its factorization.

2001244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71484 (or 71482 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 2001244 is about 1414.6533144202. The cubic root of 2001244 is about 126.0182219384.

Adding to 2001244 its reverse (4421002), we get a palindrome (6422246).

It can be divided in two parts, 200 and 1244, that added together give a square (1444 = 38²).

The spelling of 2001244 in words is "two million, one thousand, two hundred forty-four".