4042400443 has 16 divisors (see below), whose sum is σ = 4242214656. Its totient is φ = 3844668960.

The previous prime is 4042400441. The next prime is 4042400449. The reversal of 4042400443 is 3440042404.

It is not a de Polignac number, because 4042400443 - 2¹ = 4042400441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4042400441) 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, 5514505 + ... + 5515237.

It is an arithmetic number, because the mean of its divisors is an integer number (265138416).

Almost surely, 2^4042400443 is an apocalyptic number.

4042400443 is a deficient number, since it is larger than the sum of its proper divisors (199814213).

4042400443 is a wasteful number, since it uses less digits than its factorization.

4042400443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1794.

The product of its (nonzero) digits is 6144, while the sum is 25.

The square root of 4042400443 is about 63579.8745123015. The cubic root of 4042400443 is about 1592.9902252759.

Adding to 4042400443 its reverse (3440042404), we get a palindrome (7482442847).

The spelling of 4042400443 in words is "four billion, forty-two million, four hundred thousand, four hundred forty-three".