2001444 has 24 divisors (see below), whose sum is σ = 4945248. Its totient is φ = 627840.

The previous prime is 2001421. The next prime is 2001449. The reversal of 2001444 is 4441002.

It is not an unprimeable number, because it can be changed into a prime (2001449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4702 + ... + 5109.

It is an arithmetic number, because the mean of its divisors is an integer number (206052).

2^2001444 is an apocalyptic number.

It is an amenable number.

2001444 is an abundant number, since it is smaller than the sum of its proper divisors (2943804).

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

2001444 is a wasteful number, since it uses less digits than its factorization.

2001444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9835 (or 9833 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 2001444 is about 1414.7240013515. The cubic root of 2001444 is about 126.0224197948.

Adding to 2001444 its reverse (4441002), we get a palindrome (6442446).

The spelling of 2001444 in words is "two million, one thousand, four hundred forty-four".