20044442001 has 8 divisors (see below), whose sum is σ = 26736610240. Its totient is φ = 13357617552.

The previous prime is 20044441997. The next prime is 20044442003. The reversal of 20044442001 is 10024444002.

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

It is not a de Polignac number, because 20044442001 - 2² = 20044441997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20044442003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1327186 + ... + 1342203.

It is an arithmetic number, because the mean of its divisors is an integer number (3342076280).

Almost surely, 2^20044442001 is an apocalyptic number.

It is an amenable number.

20044442001 is a deficient number, since it is larger than the sum of its proper divisors (6692168239).

20044442001 is a wasteful number, since it uses less digits than its factorization.

20044442001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2671895.

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 20044442001 its reverse (10024444002), we get a palindrome (30068886003).

The spelling of 20044442001 in words is "twenty billion, forty-four million, four hundred forty-two thousand, one".