2009449037 has 2 divisors, whose sum is σ = 2009449038. Its totient is φ = 2009449036.

The previous prime is 2009449019. The next prime is 2009449051. The reversal of 2009449037 is 7309449002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1019780356 + 989668681 = 31934^2 + 31459^2 .

It is a cyclic number.

It is not a de Polignac number, because 2009449037 - 2¹⁴ = 2009432653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2009449087) 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, 1004724518 + 1004724519.

It is an arithmetic number, because the mean of its divisors is an integer number (1004724519).

Almost surely, 2^2009449037 is an apocalyptic number.

It is an amenable number.

2009449037 is a deficient number, since it is larger than the sum of its proper divisors (1).

2009449037 is an equidigital number, since it uses as much as digits as its factorization.

2009449037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 2009449037 is about 44826.8785105544. The cubic root of 2009449037 is about 1261.9021067523.

The spelling of 2009449037 in words is "two billion, nine million, four hundred forty-nine thousand, thirty-seven".