20442282208 has 12 divisors (see below), whose sum is σ = 40245743160. Its totient is φ = 10221141088.

The previous prime is 20442282193. The next prime is 20442282233. The reversal of 20442282208 is 80228224402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 319410628 + ... + 319410691.

It is an arithmetic number, because the mean of its divisors is an integer number (3353811930).

Almost surely, 2^20442282208 is an apocalyptic number.

It is an amenable number.

20442282208 is a deficient number, since it is larger than the sum of its proper divisors (19803460952).

20442282208 is an equidigital number, since it uses as much as digits as its factorization.

20442282208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638821329 (or 638821321 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 34.

The spelling of 20442282208 in words is "twenty billion, four hundred forty-two million, two hundred eighty-two thousand, two hundred eight".