2001442243 has 8 divisors (see below), whose sum is σ = 2067903360. Its totient is φ = 1935099840.

The previous prime is 2001442229. The next prime is 2001442253. The reversal of 2001442243 is 3422441002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2001442243 - 2⁵ = 2001442211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2001442213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5271 + ... + 63487.

It is an arithmetic number, because the mean of its divisors is an integer number (258487920).

Almost surely, 2^2001442243 is an apocalyptic number.

2001442243 is a deficient number, since it is larger than the sum of its proper divisors (66461117).

2001442243 is a wasteful number, since it uses less digits than its factorization.

2001442243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59357.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 2001442243 is about 44737.4814110048. The cubic root of 2001442243 is about 1260.2238291788.

Adding to 2001442243 its reverse (3422441002), we get a palindrome (5423883245).

The spelling of 2001442243 in words is "two billion, one million, four hundred forty-two thousand, two hundred forty-three".