20044420309 has 8 divisors (see below), whose sum is σ = 20350351872. Its totient is φ = 19739144880.

The previous prime is 20044420271. The next prime is 20044420313. The reversal of 20044420309 is 90302444002.

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

It is a cyclic number.

It is not a de Polignac number, because 20044420309 - 2³¹ = 17896936661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20044420349) 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, 102294 + ... + 224839.

It is an arithmetic number, because the mean of its divisors is an integer number (2543793984).

Almost surely, 2^20044420309 is an apocalyptic number.

It is an amenable number.

20044420309 is a deficient number, since it is larger than the sum of its proper divisors (305931563).

20044420309 is an equidigital number, since it uses as much as digits as its factorization.

20044420309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328067.

The product of its (nonzero) digits is 6912, while the sum is 28.

The spelling of 20044420309 in words is "twenty billion, forty-four million, four hundred twenty thousand, three hundred nine".