4403313421 has 6 divisors (see below), whose sum is σ = 4768085130. Its totient is φ = 4064596848.

The previous prime is 4403313401. The next prime is 4403313433. The reversal of 4403313421 is 1243133044.

It can be written as a sum of positive squares in 3 ways, for example, as 116337796 + 4286975625 = 10786^2 + 65475^2 .

It is not a de Polignac number, because 4403313421 - 2⁵ = 4403313389 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 (4403313401) 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, 13027386 + ... + 13027723.

It is an arithmetic number, because the mean of its divisors is an integer number (794680855).

Almost surely, 2^4403313421 is an apocalyptic number.

It is an amenable number.

4403313421 is a deficient number, since it is larger than the sum of its proper divisors (364771709).

4403313421 is a wasteful number, since it uses less digits than its factorization.

4403313421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26055135 (or 26055122 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 4403313421 is about 66357.4669573817. The cubic root of 4403313421 is about 1639.0537647073.

Adding to 4403313421 its reverse (1243133044), we get a palindrome (5646446465).

The spelling of 4403313421 in words is "four billion, four hundred three million, three hundred thirteen thousand, four hundred twenty-one".