4020013443 has 16 divisors (see below), whose sum is σ = 5858390016. Its totient is φ = 2440993920.

The previous prime is 4020013427. The next prime is 4020013453. The reversal of 4020013443 is 3443100204.

It is not a de Polignac number, because 4020013443 - 2⁴ = 4020013427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4020013453) 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, 1269771 + ... + 1272932.

It is an arithmetic number, because the mean of its divisors is an integer number (366149376).

Almost surely, 2^4020013443 is an apocalyptic number.

4020013443 is a deficient number, since it is larger than the sum of its proper divisors (1838376573).

4020013443 is a wasteful number, since it uses less digits than its factorization.

4020013443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2542754.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 4020013443 is about 63403.5759480489. The cubic root of 4020013443 is about 1590.0440955296.

Adding to 4020013443 its reverse (3443100204), we get a palindrome (7463113647).

The spelling of 4020013443 in words is "four billion, twenty million, thirteen thousand, four hundred forty-three".