4234433221 has 6 divisors (see below), whose sum is σ = 4241188050. Its totient is φ = 4227689088.

The previous prime is 4234433209. The next prime is 4234433227. The reversal of 4234433221 is 1223344324.

4234433221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 709636321 + 3524796900 = 26639^2 + 59370^2 .

It is not a de Polignac number, because 4234433221 - 2¹³ = 4234425029 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 4234433221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4234433227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 448255 + ... + 457603.

It is an arithmetic number, because the mean of its divisors is an integer number (706864675).

Almost surely, 2^4234433221 is an apocalyptic number.

It is an amenable number.

4234433221 is a deficient number, since it is larger than the sum of its proper divisors (6754829).

4234433221 is an frugal number, since it uses more digits than its factorization.

4234433221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10695 (or 10022 counting only the distinct ones).

The product of its digits is 13824, while the sum is 28.

The square root of 4234433221 is about 65072.5227803564. The cubic root of 4234433221 is about 1617.8258214962.

Adding to 4234433221 its reverse (1223344324), we get a palindrome (5457777545).

The spelling of 4234433221 in words is "four billion, two hundred thirty-four million, four hundred thirty-three thousand, two hundred twenty-one".