20432032432 has 40 divisors (see below), whose sum is σ = 47623539200. Its totient is φ = 8295711552.

The previous prime is 20432032427. The next prime is 20432032463. The reversal of 20432032432 is 23423023402.

It is a junction number, because it is equal to n+sod(n) for n = 20432032397 and 20432032406.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4798632 + ... + 4802887.

It is an arithmetic number, because the mean of its divisors is an integer number (1190588480).

Almost surely, 2^20432032432 is an apocalyptic number.

It is an amenable number.

20432032432 is an abundant number, since it is smaller than the sum of its proper divisors (27191506768).

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

20432032432 is a wasteful number, since it uses less digits than its factorization.

20432032432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9601553 (or 9601547 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 25.

Adding to 20432032432 its reverse (23423023402), we get a palindrome (43855055834).

The spelling of 20432032432 in words is "twenty billion, four hundred thirty-two million, thirty-two thousand, four hundred thirty-two".