20384434932 has 12 divisors (see below), whose sum is σ = 47563681536. Its totient is φ = 6794811640.

The previous prime is 20384434897. The next prime is 20384434937. The reversal of 20384434932 is 23943448302.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20384434937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 849351444 + ... + 849351467.

It is an arithmetic number, because the mean of its divisors is an integer number (3963640128).

Almost surely, 2^20384434932 is an apocalyptic number.

It is an amenable number.

20384434932 is an abundant number, since it is smaller than the sum of its proper divisors (27179246604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20384434932 is a wasteful number, since it uses less digits than its factorization.

20384434932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1698702918 (or 1698702916 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 42.

The spelling of 20384434932 in words is "twenty billion, three hundred eighty-four million, four hundred thirty-four thousand, nine hundred thirty-two".