20029338209 has 8 divisors (see below), whose sum is σ = 20519201472. Its totient is φ = 19540568880.

The previous prime is 20029338181. The next prime is 20029338223. The reversal of 20029338209 is 90283392002.

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 20029338209 - 2⁸ = 20029337953 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20029338269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236357 + ... + 309714.

It is an arithmetic number, because the mean of its divisors is an integer number (2564900184).

Almost surely, 2^20029338209 is an apocalyptic number.

It is an amenable number.

20029338209 is a deficient number, since it is larger than the sum of its proper divisors (489863263).

20029338209 is an equidigital number, since it uses as much as digits as its factorization.

20029338209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546967.

The product of its (nonzero) digits is 46656, while the sum is 38.

The spelling of 20029338209 in words is "twenty billion, twenty-nine million, three hundred thirty-eight thousand, two hundred nine".