4404532421 has 4 divisors (see below), whose sum is σ = 4546614144. Its totient is φ = 4262450700.

The previous prime is 4404532411. The next prime is 4404532423. The reversal of 4404532421 is 1242354044.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4404532421 - 2²⁶ = 4337423557 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4404532423) 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, 71040815 + ... + 71040876.

It is an arithmetic number, because the mean of its divisors is an integer number (1136653536).

Almost surely, 2^4404532421 is an apocalyptic number.

It is an amenable number.

4404532421 is a deficient number, since it is larger than the sum of its proper divisors (142081723).

4404532421 is a wasteful number, since it uses less digits than its factorization.

4404532421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142081722.

The product of its (nonzero) digits is 15360, while the sum is 29.

The square root of 4404532421 is about 66366.6514222316. The cubic root of 4404532421 is about 1639.2050009849.

Adding to 4404532421 its reverse (1242354044), we get a palindrome (5646886465).

The spelling of 4404532421 in words is "four billion, four hundred four million, five hundred thirty-two thousand, four hundred twenty-one".