2001384443 has 2 divisors, whose sum is σ = 2001384444. Its totient is φ = 2001384442.

The previous prime is 2001384431. The next prime is 2001384457. The reversal of 2001384443 is 3444831002.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2001384443 is a prime.

It is not a weakly prime, because it can be changed into another prime (2001384493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000692221 + 1000692222.

It is an arithmetic number, because the mean of its divisors is an integer number (1000692222).

Almost surely, 2^2001384443 is an apocalyptic number.

2001384443 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001384443 is an equidigital number, since it uses as much as digits as its factorization.

2001384443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 2001384443 is about 44736.8354155723. The cubic root of 2001384443 is about 1260.2116976540.

The spelling of 2001384443 in words is "two billion, one million, three hundred eighty-four thousand, four hundred forty-three".