4030442643 has 4 divisors (see below), whose sum is σ = 5373923528. Its totient is φ = 2686961760.

The previous prime is 4030442617. The next prime is 4030442657. The reversal of 4030442643 is 3462440304.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 4030442643 - 2¹⁴ = 4030426259 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 4030442643.

It is not an unprimeable number, because it can be changed into a prime (4030442443) 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 3 ways as a sum of consecutive naturals, for example, 671740438 + ... + 671740443.

It is an arithmetic number, because the mean of its divisors is an integer number (1343480882).

Almost surely, 2^4030442643 is an apocalyptic number.

4030442643 is a deficient number, since it is larger than the sum of its proper divisors (1343480885).

4030442643 is a wasteful number, since it uses less digits than its factorization.

4030442643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343480884.

The product of its (nonzero) digits is 27648, while the sum is 30.

The square root of 4030442643 is about 63485.7672474705. The cubic root of 4030442643 is about 1591.4179357179.

Adding to 4030442643 its reverse (3462440304), we get a palindrome (7492882947).

The spelling of 4030442643 in words is "four billion, thirty million, four hundred forty-two thousand, six hundred forty-three".