2001041443 has 8 divisors (see below), whose sum is σ = 2009973312. Its totient is φ = 1992129216.

The previous prime is 2001041429. The next prime is 2001041467. The reversal of 2001041443 is 3441401002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2001041443 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2001041443.

It is not an unprimeable number, because it can be changed into a prime (2001041473) 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, 222021 + ... + 230857.

It is an arithmetic number, because the mean of its divisors is an integer number (251246664).

Almost surely, 2^2001041443 is an apocalyptic number.

2001041443 is a deficient number, since it is larger than the sum of its proper divisors (8931869).

2001041443 is an equidigital number, since it uses as much as digits as its factorization.

2001041443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9821.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2001041443 is about 44733.0017213243. The cubic root of 2001041443 is about 1260.1397012734.

Adding to 2001041443 its reverse (3441401002), we get a palindrome (5442442445).

The spelling of 2001041443 in words is "two billion, one million, forty-one thousand, four hundred forty-three".