2005420223 has 8 divisors (see below), whose sum is σ = 2013688080. Its totient is φ = 1997167360.

The previous prime is 2005420211. The next prime is 2005420231. The reversal of 2005420223 is 3220245002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2005420223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2005420195 and 2005420204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005420243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319253 + ... + 325473.

It is an arithmetic number, because the mean of its divisors is an integer number (251711010).

Almost surely, 2^2005420223 is an apocalyptic number.

2005420223 is a deficient number, since it is larger than the sum of its proper divisors (8267857).

2005420223 is an equidigital number, since it uses as much as digits as its factorization.

2005420223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7497.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 2005420223 is about 44781.9184827984. The cubic root of 2005420223 is about 1261.0581987548.

Adding to 2005420223 its reverse (3220245002), we get a palindrome (5225665225).

The spelling of 2005420223 in words is "two billion, five million, four hundred twenty thousand, two hundred twenty-three".