4424440521 has 8 divisors (see below), whose sum is σ = 5903376480. Its totient is φ = 2947565792.

The previous prime is 4424440511. The next prime is 4424440543. The reversal of 4424440521 is 1250444244.

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

It is a cyclic number.

It is not a de Polignac number, because 4424440521 - 2¹⁰ = 4424439497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4424440511) 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, 510291 + ... + 518888.

It is an arithmetic number, because the mean of its divisors is an integer number (737922060).

Almost surely, 2^4424440521 is an apocalyptic number.

It is an amenable number.

4424440521 is a deficient number, since it is larger than the sum of its proper divisors (1478935959).

4424440521 is a wasteful number, since it uses less digits than its factorization.

4424440521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030615.

The product of its (nonzero) digits is 20480, while the sum is 30.

The square root of 4424440521 is about 66516.4680436356. The cubic root of 4424440521 is about 1641.6709769591.

Adding to 4424440521 its reverse (1250444244), we get a palindrome (5674884765).

The spelling of 4424440521 in words is "four billion, four hundred twenty-four million, four hundred forty thousand, five hundred twenty-one".