40532431232 has 64 divisors (see below), whose sum is σ = 82481675760. Its totient is φ = 19835412480.

The previous prime is 40532431213. The next prime is 40532431243. The reversal of 40532431232 is 23213423504.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 40532431195 and 40532431204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1207508 + ... + 1240620.

Almost surely, 2^40532431232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40532431232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41240837880).

40532431232 is an abundant number, since it is smaller than the sum of its proper divisors (41949244528).

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

40532431232 is a wasteful number, since it uses less digits than its factorization.

40532431232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33331 (or 33319 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 29.

Adding to 40532431232 its reverse (23213423504), we get a palindrome (63745854736).

The spelling of 40532431232 in words is "forty billion, five hundred thirty-two million, four hundred thirty-one thousand, two hundred thirty-two".