4143004421 has 4 divisors (see below), whose sum is σ = 4323135072. Its totient is φ = 3962873772.

The previous prime is 4143004417. The next prime is 4143004427. The reversal of 4143004421 is 1244003414.

It is a happy number.

4143004421 is digitally balanced in base 3, 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 4143004421 - 2² = 4143004417 is a prime.

It is a super-3 number, since 3×4143004421³ (a number of 30 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 180130627 = 4143004421 / (4 + 1 + 4 + 3 + 0 + 0 + 4 + 4 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4143004427) 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, 90065291 + ... + 90065336.

It is an arithmetic number, because the mean of its divisors is an integer number (1080783768).

Almost surely, 2^4143004421 is an apocalyptic number.

It is an amenable number.

4143004421 is a deficient number, since it is larger than the sum of its proper divisors (180130651).

4143004421 is a wasteful number, since it uses less digits than its factorization.

4143004421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180130650.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 4143004421 is about 64366.1745095978. The cubic root of 4143004421 is about 1606.0971036345.

Adding to 4143004421 its reverse (1244003414), we get a palindrome (5387007835).

The spelling of 4143004421 in words is "four billion, one hundred forty-three million, four thousand, four hundred twenty-one".