4420144240321 has 4 divisors (see below), whose sum is σ = 4420256943492. Its totient is φ = 4420031537152.

The previous prime is 4420144240319. The next prime is 4420144240381. The reversal of 4420144240321 is 1230424410244.

It is a happy number.

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 589946886400 + 3830197353921 = 768080^2 + 1957089^2 .

It is a cyclic number.

It is not a de Polignac number, because 4420144240321 - 2¹ = 4420144240319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4420144240381) 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, 56292736 + ... + 56371201.

It is an arithmetic number, because the mean of its divisors is an integer number (1105064235873).

Almost surely, 2^{4420144240321} is an apocalyptic number.

It is an amenable number.

4420144240321 is a deficient number, since it is larger than the sum of its proper divisors (112703171).

4420144240321 is a wasteful number, since it uses less digits than its factorization.

4420144240321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112703170.

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 4420144240321 its reverse (1230424410244), we get a palindrome (5650568650565).

The spelling of 4420144240321 in words is "four trillion, four hundred twenty billion, one hundred forty-four million, two hundred forty thousand, three hundred twenty-one".