2049007409 has 2 divisors, whose sum is σ = 2049007410. Its totient is φ = 2049007408.

The previous prime is 2049007393. The next prime is 2049007511. The reversal of 2049007409 is 9047009402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1916688400 + 132319009 = 43780^2 + 11503^2 .

It is a cyclic number.

It is not a de Polignac number, because 2049007409 - 2⁴ = 2049007393 is a prime.

It is not a weakly prime, because it can be changed into another prime (2049007309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1024503704 + 1024503705.

It is an arithmetic number, because the mean of its divisors is an integer number (1024503705).

Almost surely, 2^2049007409 is an apocalyptic number.

It is an amenable number.

2049007409 is a deficient number, since it is larger than the sum of its proper divisors (1).

2049007409 is an equidigital number, since it uses as much as digits as its factorization.

2049007409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 2049007409 is about 45265.9630296319. The cubic root of 2049007409 is about 1270.1290316747.

The spelling of 2049007409 in words is "two billion, forty-nine million, seven thousand, four hundred nine".