4224433421 has 4 divisors (see below), whose sum is σ = 4549389852. Its totient is φ = 3899476992.

The previous prime is 4224433417. The next prime is 4224433429. The reversal of 4224433421 is 1243344224.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2692572100 + 1531861321 = 51890^2 + 39139^2 .

It is a cyclic number.

It is not a de Polignac number, because 4224433421 - 2² = 4224433417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4224433429) 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, 162478196 + ... + 162478221.

It is an arithmetic number, because the mean of its divisors is an integer number (1137347463).

Almost surely, 2^4224433421 is an apocalyptic number.

It is an amenable number.

4224433421 is a deficient number, since it is larger than the sum of its proper divisors (324956431).

4224433421 is a wasteful number, since it uses less digits than its factorization.

4224433421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324956430.

The product of its digits is 18432, while the sum is 29.

The square root of 4224433421 is about 64995.6415538765. The cubic root of 4224433421 is about 1616.5512954454.

Adding to 4224433421 its reverse (1243344224), we get a palindrome (5467777645).

The spelling of 4224433421 in words is "four billion, two hundred twenty-four million, four hundred thirty-three thousand, four hundred twenty-one".