32403530432 has 112 divisors (see below), whose sum is σ = 79450996800. Its totient is φ = 12768509952.

The previous prime is 32403530429. The next prime is 32403530447. The reversal of 32403530432 is 23403530423.

It is a tau number, because it is divible by the number of its divisors (112).

It is a junction number, because it is equal to n+sod(n) for n = 32403530395 and 32403530404.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1485944 + ... + 1507592.

It is an arithmetic number, because the mean of its divisors is an integer number (709383900).

Almost surely, 2^32403530432 is an apocalyptic number.

32403530432 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32403530432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39725498400).

32403530432 is an abundant number, since it is smaller than the sum of its proper divisors (47047466368).

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

32403530432 is a wasteful number, since it uses less digits than its factorization.

32403530432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21938 (or 21928 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 29.

Subtracting from 32403530432 its reverse (23403530423), we obtain a palindrome (9000000009).

The spelling of 32403530432 in words is "thirty-two billion, four hundred three million, five hundred thirty thousand, four hundred thirty-two".