2005450443 has 12 divisors (see below), whose sum is σ = 2898572040. Its totient is φ = 1336131456.

The previous prime is 2005450423. The next prime is 2005450463. The reversal of 2005450443 is 3440545002.

2005450443 is a `hidden beast` number, since 200 + 5 + 450 + 4 + 4 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (2005450423) and next prime (2005450463).

It is not a de Polignac number, because 2005450443 - 2¹⁸ = 2005188299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2005450423) 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 11 ways as a sum of consecutive naturals, for example, 54246 + ... + 83387.

It is an arithmetic number, because the mean of its divisors is an integer number (241547670).

Almost surely, 2^2005450443 is an apocalyptic number.

2005450443 is a deficient number, since it is larger than the sum of its proper divisors (893121597).

2005450443 is a wasteful number, since it uses less digits than its factorization.

2005450443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139258 (or 139255 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 2005450443 is about 44782.2558944946. The cubic root of 2005450443 is about 1261.0645330859.

Adding to 2005450443 its reverse (3440545002), we get a palindrome (5445995445).

The spelling of 2005450443 in words is "two billion, five million, four hundred fifty thousand, four hundred forty-three".