2009441 has 12 divisors (see below), whose sum is σ = 2440512. Its totient is φ = 1646568.

The previous prime is 2009437. The next prime is 2009461. The reversal of 2009441 is 1449002.

It is not a de Polignac number, because 2009441 - 2² = 2009437 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2009461) 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 11 ways as a sum of consecutive naturals, for example, 236 + ... + 2018.

It is an arithmetic number, because the mean of its divisors is an integer number (203376).

2^2009441 is an apocalyptic number.

It is an amenable number.

2009441 is a deficient number, since it is larger than the sum of its proper divisors (431071).

2009441 is a wasteful number, since it uses less digits than its factorization.

2009441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1820 (or 1813 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 2009441 is about 1417.5475300673. The cubic root of 2009441 is about 126.1900424381.

The spelling of 2009441 in words is "two million, nine thousand, four hundred forty-one".