20444026003 has 4 divisors (see below), whose sum is σ = 20449816128. Its totient is φ = 20438235880.

The previous prime is 20444025997. The next prime is 20444026007. The reversal of 20444026003 is 30062044402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20444026003 is a prime.

It is a super-2 number, since 2×20444026003² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20444026007) 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, 2889763 + ... + 2896828.

It is an arithmetic number, because the mean of its divisors is an integer number (5112454032).

Almost surely, 2^20444026003 is an apocalyptic number.

20444026003 is a deficient number, since it is larger than the sum of its proper divisors (5790125).

20444026003 is an equidigital number, since it uses as much as digits as its factorization.

20444026003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5790124.

The product of its (nonzero) digits is 4608, while the sum is 25.

The spelling of 20444026003 in words is "twenty billion, four hundred forty-four million, twenty-six thousand, three".