20444729336 has 16 divisors (see below), whose sum is σ = 38335388400. Its totient is φ = 10221959104.

The previous prime is 20444729321. The next prime is 20444729341. The reversal of 20444729336 is 63392744402.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 347861 + ... + 402363.

It is an arithmetic number, because the mean of its divisors is an integer number (2395961775).

Almost surely, 2^20444729336 is an apocalyptic number.

It is an amenable number.

20444729336 is a deficient number, since it is larger than the sum of its proper divisors (17890659064).

20444729336 is a wasteful number, since it uses less digits than its factorization.

20444729336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101398 (or 101394 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 44.

The spelling of 20444729336 in words is "twenty billion, four hundred forty-four million, seven hundred twenty-nine thousand, three hundred thirty-six".