4223420443 has 4 divisors (see below), whose sum is σ = 4607367768. Its totient is φ = 3839473120.

The previous prime is 4223420429. The next prime is 4223420447. The reversal of 4223420443 is 3440243224.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 4223420443 - 2¹³ = 4223412251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4223420447) 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, 191973646 + ... + 191973667.

It is an arithmetic number, because the mean of its divisors is an integer number (1151841942).

Almost surely, 2^4223420443 is an apocalyptic number.

4223420443 is a deficient number, since it is larger than the sum of its proper divisors (383947325).

4223420443 is a wasteful number, since it uses less digits than its factorization.

4223420443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383947324.

The product of its (nonzero) digits is 18432, while the sum is 28.

The square root of 4223420443 is about 64987.8484256865. The cubic root of 4223420443 is about 1616.4220740295.

Adding to 4223420443 its reverse (3440243224), we get a palindrome (7663663667).

The spelling of 4223420443 in words is "four billion, two hundred twenty-three million, four hundred twenty thousand, four hundred forty-three".