20339831432 has 12 divisors (see below), whose sum is σ = 38137940295. Its totient is φ = 10169714024.

The previous prime is 20339831419. The next prime is 20339831443. The reversal of 20339831432 is 23413893302.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 10169915716 + 10169915716 = 100846^2 + 100846^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=100846.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 378173 + ... + 428595.

Almost surely, 2^20339831432 is an apocalyptic number.

It is an amenable number.

20339831432 is a deficient number, since it is larger than the sum of its proper divisors (17798108863).

20339831432 is an frugal number, since it uses more digits than its factorization.

20339831432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100852 (or 50425 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 38.

The spelling of 20339831432 in words is "twenty billion, three hundred thirty-nine million, eight hundred thirty-one thousand, four hundred thirty-two".