20438350108 has 24 divisors (see below), whose sum is σ = 39052606320. Its totient is φ = 9282078720.

The previous prime is 20438350061. The next prime is 20438350109. The reversal of 20438350108 is 80105383402.

It is a happy number.

It is a super-3 number, since 3×20438350108³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20438350109) 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, 150703 + ... + 252166.

It is an arithmetic number, because the mean of its divisors is an integer number (1627191930).

Almost surely, 2^20438350108 is an apocalyptic number.

It is an amenable number.

20438350108 is a deficient number, since it is larger than the sum of its proper divisors (18614256212).

20438350108 is a wasteful number, since it uses less digits than its factorization.

20438350108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404037 (or 404035 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The spelling of 20438350108 in words is "twenty billion, four hundred thirty-eight million, three hundred fifty thousand, one hundred eight".