441220321009 has 4 divisors (see below), whose sum is σ = 475160345716. Its totient is φ = 407280296304.

The previous prime is 441220320967. The next prime is 441220321039. The reversal of 441220321009 is 900123022144.

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 122672961009 + 318547360000 = 350247^2 + 564400^2 .

It is a cyclic number.

It is not a de Polignac number, because 441220321009 - 2³⁵ = 406860582641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (441220321039) 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, 16970012334 + ... + 16970012359.

It is an arithmetic number, because the mean of its divisors is an integer number (118790086429).

Almost surely, 2^441220321009 is an apocalyptic number.

It is an amenable number.

441220321009 is a deficient number, since it is larger than the sum of its proper divisors (33940024707).

441220321009 is a wasteful number, since it uses less digits than its factorization.

441220321009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33940024706.

The product of its (nonzero) digits is 3456, while the sum is 28.

The spelling of 441220321009 in words is "four hundred forty-one billion, two hundred twenty million, three hundred twenty-one thousand, nine".