2006445243 has 16 divisors (see below), whose sum is σ = 3019104000. Its totient is φ = 1174094880.

The previous prime is 2006445229. The next prime is 2006445257. The reversal of 2006445243 is 3425446002.

It is an interprime number because it is at equal distance from previous prime (2006445229) and next prime (2006445257).

It is not a de Polignac number, because 2006445243 - 2⁵ = 2006445211 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2006445243.

It is not an unprimeable number, because it can be changed into a prime (2006445263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1047343 + ... + 1049256.

It is an arithmetic number, because the mean of its divisors is an integer number (188694000).

Almost surely, 2^2006445243 is an apocalyptic number.

2006445243 is a deficient number, since it is larger than the sum of its proper divisors (1012658757).

2006445243 is a wasteful number, since it uses less digits than its factorization.

2006445243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2096642.

The product of its (nonzero) digits is 23040, while the sum is 30.

The square root of 2006445243 is about 44793.3615952185. The cubic root of 2006445243 is about 1261.2730148640.

The spelling of 2006445243 in words is "two billion, six million, four hundred forty-five thousand, two hundred forty-three".