2009449003 has 2 divisors, whose sum is σ = 2009449004. Its totient is φ = 2009449002.

The previous prime is 2009448989. The next prime is 2009449019. The reversal of 2009449003 is 3009449002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2009449003 - 2⁵ = 2009448971 is a prime.

It is not a weakly prime, because it can be changed into another prime (2009441003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1004724501 + 1004724502.

It is an arithmetic number, because the mean of its divisors is an integer number (1004724502).

Almost surely, 2^2009449003 is an apocalyptic number.

2009449003 is a deficient number, since it is larger than the sum of its proper divisors (1).

2009449003 is an equidigital number, since it uses as much as digits as its factorization.

2009449003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 2009449003 is about 44826.8781313176. The cubic root of 2009449003 is about 1261.9020996352.

Subtracting 2009449003 from its reverse (3009449002), we obtain a palindrome (999999999).

The spelling of 2009449003 in words is "two billion, nine million, four hundred forty-nine thousand, three".