4042404321 has 4 divisors (see below), whose sum is σ = 5389872432. Its totient is φ = 2694936212.

The previous prime is 4042404319. The next prime is 4042404403. The reversal of 4042404321 is 1234042404.

It is a happy number.

4042404321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4042404321 - 2¹ = 4042404319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4042404291 and 4042404300.

It is not an unprimeable number, because it can be changed into a prime (4042404521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 673734051 + ... + 673734056.

It is an arithmetic number, because the mean of its divisors is an integer number (1347468108).

Almost surely, 2^4042404321 is an apocalyptic number.

It is an amenable number.

4042404321 is a deficient number, since it is larger than the sum of its proper divisors (1347468111).

4042404321 is a wasteful number, since it uses less digits than its factorization.

4042404321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1347468110.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 4042404321 is about 63579.9050093660. The cubic root of 4042404321 is about 1592.9907346774.

Adding to 4042404321 its reverse (1234042404), we get a palindrome (5276446725).

The spelling of 4042404321 in words is "four billion, forty-two million, four hundred four thousand, three hundred twenty-one".