444220440001 has 16 divisors (see below), whose sum is σ = 489551353984. Its totient is φ = 400485181824.

The previous prime is 444220439987. The next prime is 444220440047. The reversal of 444220440001 is 100044022444.

It is not a de Polignac number, because 444220440001 - 2¹⁷ = 444220308929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (444220443001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15552205 + ... + 15580741.

It is an arithmetic number, because the mean of its divisors is an integer number (30596959624).

Almost surely, 2^444220440001 is an apocalyptic number.

It is an amenable number.

444220440001 is a deficient number, since it is larger than the sum of its proper divisors (45330913983).

444220440001 is a wasteful number, since it uses less digits than its factorization.

444220440001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56440.

The product of its (nonzero) digits is 4096, while the sum is 25.

Adding to 444220440001 its reverse (100044022444), we get a palindrome (544264462445).

The spelling of 444220440001 in words is "four hundred forty-four billion, two hundred twenty million, four hundred forty thousand, one".