4534442221 has 8 divisors (see below), whose sum is σ = 4586700600. Its totient is φ = 4482213120.

The previous prime is 4534442197. The next prime is 4534442239. The reversal of 4534442221 is 1222444354.

It can be written as a sum of positive squares in 4 ways, for example, as 126810121 + 4407632100 = 11261^2 + 66390^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4534442221 is a prime.

It is a super-2 number, since 2×4534442221² = 41122332511174825682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4534442251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 518001 + ... + 526681.

It is an arithmetic number, because the mean of its divisors is an integer number (573337575).

Almost surely, 2^4534442221 is an apocalyptic number.

It is an amenable number.

4534442221 is a deficient number, since it is larger than the sum of its proper divisors (52258379).

4534442221 is an equidigital number, since it uses as much as digits as its factorization.

4534442221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14639.

The product of its digits is 30720, while the sum is 31.

The square root of 4534442221 is about 67338.2671368962. The cubic root of 4534442221 is about 1655.1649870355.

Adding to 4534442221 its reverse (1222444354), we get a palindrome (5756886575).

The spelling of 4534442221 in words is "four billion, five hundred thirty-four million, four hundred forty-two thousand, two hundred twenty-one".