2066230409 has 4 divisors (see below), whose sum is σ = 2072748804. Its totient is φ = 2059712016.

The previous prime is 2066230393. The next prime is 2066230421. The reversal of 2066230409 is 9040326602.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 742726009 + 1323504400 = 27253^2 + 36380^2 .

It is a cyclic number.

It is not a de Polignac number, because 2066230409 - 2⁴ = 2066230393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2066230429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3258722 + ... + 3259355.

It is an arithmetic number, because the mean of its divisors is an integer number (518187201).

Almost surely, 2^2066230409 is an apocalyptic number.

It is an amenable number.

2066230409 is a deficient number, since it is larger than the sum of its proper divisors (6518395).

2066230409 is an equidigital number, since it uses as much as digits as its factorization.

2066230409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6518394.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 2066230409 is about 45455.8072087605. The cubic root of 2066230409 is about 1273.6778109975.

The spelling of 2066230409 in words is "two billion, sixty-six million, two hundred thirty thousand, four hundred nine".