2005443045 has 48 divisors (see below), whose sum is σ = 3606220800. Its totient is φ = 1030199040.

The previous prime is 2005443043. The next prime is 2005443049. The reversal of 2005443045 is 5403445002.

It is not a de Polignac number, because 2005443045 - 2¹ = 2005443043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005443043) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 138876 + ... + 152634.

It is an arithmetic number, because the mean of its divisors is an integer number (75129600).

Almost surely, 2^2005443045 is an apocalyptic number.

It is an amenable number.

2005443045 is a deficient number, since it is larger than the sum of its proper divisors (1600777755).

2005443045 is a wasteful number, since it uses less digits than its factorization.

2005443045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13890 (or 13887 counting only the distinct ones).

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

The square root of 2005443045 is about 44782.1732947386. The cubic root of 2005443045 is about 1261.0629824174.

Adding to 2005443045 its reverse (5403445002), we get a palindrome (7408888047).

The spelling of 2005443045 in words is "two billion, five million, four hundred forty-three thousand, forty-five".