2000442505 has 4 divisors (see below), whose sum is σ = 2400531012. Its totient is φ = 1600354000.

The previous prime is 2000442487. The next prime is 2000442527. The reversal of 2000442505 is 5052440002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1352179984 + 648262521 = 36772^2 + 25461^2 .

It is not a de Polignac number, because 2000442505 - 2⁵ = 2000442473 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200044246 + ... + 200044255.

It is an arithmetic number, because the mean of its divisors is an integer number (600132753).

Almost surely, 2^2000442505 is an apocalyptic number.

It is an amenable number.

2000442505 is a deficient number, since it is larger than the sum of its proper divisors (400088507).

2000442505 is an equidigital number, since it uses as much as digits as its factorization.

2000442505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400088506.

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 2000442505 is about 44726.3066326742. The cubic root of 2000442505 is about 1260.0139632701.

Adding to 2000442505 its reverse (5052440002), we get a palindrome (7052882507).

The spelling of 2000442505 in words is "two billion, four hundred forty-two thousand, five hundred five".