2090344609 has 2 divisors, whose sum is σ = 2090344610. Its totient is φ = 2090344608.

The previous prime is 2090344579. The next prime is 2090344631. The reversal of 2090344609 is 9064430902.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1477633600 + 612711009 = 38440^2 + 24753^2 .

It is a cyclic number.

It is not a de Polignac number, because 2090344609 - 2⁵ = 2090344577 is a prime.

It is not a weakly prime, because it can be changed into another prime (2090344699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1045172304 + 1045172305.

It is an arithmetic number, because the mean of its divisors is an integer number (1045172305).

Almost surely, 2^2090344609 is an apocalyptic number.

It is an amenable number.

2090344609 is a deficient number, since it is larger than the sum of its proper divisors (1).

2090344609 is an equidigital number, since it uses as much as digits as its factorization.

2090344609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 2090344609 is about 45720.2866242109. The cubic root of 2090344609 is about 1278.6135315049.

The spelling of 2090344609 in words is "two billion, ninety million, three hundred forty-four thousand, six hundred nine".