4432040321 has 4 divisors (see below), whose sum is σ = 4432317444. Its totient is φ = 4431763200.

The previous prime is 4432040311. The next prime is 4432040363. The reversal of 4432040321 is 1230402344.

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 2281399696 + 2150640625 = 47764^2 + 46375^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4432040321 is a prime.

It is a super-4 number, since 4×4432040321⁴ (a number of 40 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4432040311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113000 + ... + 147081.

It is an arithmetic number, because the mean of its divisors is an integer number (1108079361).

Almost surely, 2^4432040321 is an apocalyptic number.

It is an amenable number.

4432040321 is a deficient number, since it is larger than the sum of its proper divisors (277123).

4432040321 is a wasteful number, since it uses less digits than its factorization.

4432040321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277122.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 4432040321 is about 66573.5707394458. The cubic root of 4432040321 is about 1642.6103977622.

Adding to 4432040321 its reverse (1230402344), we get a palindrome (5662442665).

The spelling of 4432040321 in words is "four billion, four hundred thirty-two million, forty thousand, three hundred twenty-one".