2005280019 has 6 divisors (see below), whose sum is σ = 2896515596. Its totient is φ = 1336853340.

The previous prime is 2005280003. The next prime is 2005280021. The reversal of 2005280019 is 9100825002.

It is not a de Polignac number, because 2005280019 - 2⁴ = 2005280003 is a prime.

It is a super-2 number, since 2×2005280019² = 8042295909201280722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2005279974 and 2005280001.

It is not an unprimeable number, because it can be changed into a prime (2005280059) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 111404437 + ... + 111404454.

Almost surely, 2^2005280019 is an apocalyptic number.

2005280019 is a deficient number, since it is larger than the sum of its proper divisors (891235577).

2005280019 is a wasteful number, since it uses less digits than its factorization.

2005280019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222808897 (or 222808894 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 2005280019 is about 44780.3530468441. The cubic root of 2005280019 is about 1261.0288101472.

The spelling of 2005280019 in words is "two billion, five million, two hundred eighty thousand, nineteen".