20444208044 has 24 divisors (see below), whose sum is σ = 38549797440. Its totient is φ = 9430809984.

The previous prime is 20444208019. The next prime is 20444208077. The reversal of 20444208044 is 44080244402.

It is a self number, because there is not a number n which added to its sum of digits gives 20444208044.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3284 + ... + 202235.

It is an arithmetic number, because the mean of its divisors is an integer number (1606241560).

Almost surely, 2^20444208044 is an apocalyptic number.

It is an amenable number.

20444208044 is a deficient number, since it is larger than the sum of its proper divisors (18105589396).

20444208044 is a wasteful number, since it uses less digits than its factorization.

20444208044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207449 (or 207447 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 32.

The spelling of 20444208044 in words is "twenty billion, four hundred forty-four million, two hundred eight thousand, forty-four".