2046938209 has 2 divisors, whose sum is σ = 2046938210. Its totient is φ = 2046938208.

The previous prime is 2046938203. The next prime is 2046938221. The reversal of 2046938209 is 9028396402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1898780625 + 148157584 = 43575^2 + 12172^2 .

It is a cyclic number.

It is not a de Polignac number, because 2046938209 - 2¹⁹ = 2046413921 is a prime.

It is not a weakly prime, because it can be changed into another prime (2046938203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1023469104 + 1023469105.

It is an arithmetic number, because the mean of its divisors is an integer number (1023469105).

Almost surely, 2^2046938209 is an apocalyptic number.

It is an amenable number.

2046938209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2046938209 is an equidigital number, since it uses as much as digits as its factorization.

2046938209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 2046938209 is about 45243.1012310164. The cubic root of 2046938209 is about 1269.7013390334.

The spelling of 2046938209 in words is "two billion, forty-six million, nine hundred thirty-eight thousand, two hundred nine".