2080005409 has 4 divisors (see below), whose sum is σ = 2080790320. Its totient is φ = 2079220500.

The previous prime is 2080005401. The next prime is 2080005443. The reversal of 2080005409 is 9045000802.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9045000802 = 2 ⋅4522500401.

It is a cyclic number.

It is not a de Polignac number, because 2080005409 - 2³ = 2080005401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2080005401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388467 + ... + 393784.

It is an arithmetic number, because the mean of its divisors is an integer number (520197580).

Almost surely, 2^2080005409 is an apocalyptic number.

It is an amenable number.

2080005409 is a deficient number, since it is larger than the sum of its proper divisors (784911).

2080005409 is an equidigital number, since it uses as much as digits as its factorization.

2080005409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784910.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 2080005409 is about 45607.0763040123. The cubic root of 2080005409 is about 1276.5019662763.

The spelling of 2080005409 in words is "two billion, eighty million, five thousand, four hundred nine".