4404104521 has 4 divisors (see below), whose sum is σ = 4404237444. Its totient is φ = 4403971600.

The previous prime is 4404104513. The next prime is 4404104539. The reversal of 4404104521 is 1254014044.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3026210121 + 1377894400 = 55011^2 + 37120^2 .

It is a cyclic number.

It is not a de Polignac number, because 4404104521 - 2³ = 4404104513 is a prime.

It is a super-2 number, since 2×4404104521² = 38792273263785278882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4404104321) 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, 27831 + ... + 97891.

It is an arithmetic number, because the mean of its divisors is an integer number (1101059361).

Almost surely, 2^4404104521 is an apocalyptic number.

It is an amenable number.

4404104521 is a deficient number, since it is larger than the sum of its proper divisors (132923).

4404104521 is an equidigital number, since it uses as much as digits as its factorization.

4404104521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132922.

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 4404104521 is about 66363.4275862843. The cubic root of 4404104521 is about 1639.1519163842.

Adding to 4404104521 its reverse (1254014044), we get a palindrome (5658118565).

The spelling of 4404104521 in words is "four billion, four hundred four million, one hundred four thousand, five hundred twenty-one".