20004300443 has 16 divisors (see below), whose sum is σ = 20492994816. Its totient is φ = 19520049120.

The previous prime is 20004300331. The next prime is 20004300451. The reversal of 20004300443 is 34400340002.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20004300443 - 2¹⁴ = 20004284059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20004300473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8822996 + ... + 8825262.

It is an arithmetic number, because the mean of its divisors is an integer number (1280812176).

Almost surely, 2^20004300443 is an apocalyptic number.

20004300443 is a deficient number, since it is larger than the sum of its proper divisors (488694373).

20004300443 is a wasteful number, since it uses less digits than its factorization.

20004300443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3154.

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 20004300443 its reverse (34400340002), we get a palindrome (54404640445).

The spelling of 20004300443 in words is "twenty billion, four million, three hundred thousand, four hundred forty-three".