2005404223 has 2 divisors, whose sum is σ = 2005404224. Its totient is φ = 2005404222.

The previous prime is 2005404217. The next prime is 2005404283. The reversal of 2005404223 is 3224045002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2005404223 - 2⁹ = 2005403711 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2005404194 and 2005404203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2005404283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1002702111 + 1002702112.

It is an arithmetic number, because the mean of its divisors is an integer number (1002702112).

Almost surely, 2^2005404223 is an apocalyptic number.

2005404223 is a deficient number, since it is larger than the sum of its proper divisors (1).

2005404223 is an equidigital number, since it uses as much as digits as its factorization.

2005404223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 2005404223 is about 44781.7398389120. The cubic root of 2005404223 is about 1261.0548450130.

Adding to 2005404223 its reverse (3224045002), we get a palindrome (5229449225).

The spelling of 2005404223 in words is "two billion, five million, four hundred four thousand, two hundred twenty-three".