4440424321 has 8 divisors (see below), whose sum is σ = 4661916480. Its totient is φ = 4221301392.

The previous prime is 4440424319. The next prime is 4440424357. The reversal of 4440424321 is 1234240444.

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 4440424321 - 2¹ = 4440424319 is a prime.

It is a super-2 number, since 2×4440424321² = 39434736301056622082, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4440424321.

It is not an unprimeable number, because it can be changed into a prime (4440424421) 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, 588466 + ... + 595963.

It is an arithmetic number, because the mean of its divisors is an integer number (582739560).

Almost surely, 2^4440424321 is an apocalyptic number.

It is an amenable number.

4440424321 is a deficient number, since it is larger than the sum of its proper divisors (221492159).

4440424321 is a wasteful number, since it uses less digits than its factorization.

4440424321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1184615.

The product of its (nonzero) digits is 12288, while the sum is 28.

The square root of 4440424321 is about 66636.5089196605. The cubic root of 4440424321 is about 1643.6455094975.

Adding to 4440424321 its reverse (1234240444), we get a palindrome (5674664765).

The spelling of 4440424321 in words is "four billion, four hundred forty million, four hundred twenty-four thousand, three hundred twenty-one".