40013332242432 has 112 divisors (see below), whose sum is σ = 107110882025712. Its totient is φ = 13285877350400.

The previous prime is 40013332242421. The next prime is 40013332242503. The reversal of 40013332242432 is 23424223331004.

It is a junction number, because it is equal to n+sod(n) for n = 40013332242393 and 40013332242402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3148432 + ... + 9483632.

Almost surely, 2^{40013332242432} 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 40013332242432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53555441012856).

40013332242432 is an abundant number, since it is smaller than the sum of its proper divisors (67097549783280).

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

40013332242432 is an equidigital number, since it uses as much as digits as its factorization.

40013332242432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6335487 (or 6335463 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 33.

Adding to 40013332242432 its reverse (23424223331004), we get a palindrome (63437555573436).

The spelling of 40013332242432 in words is "forty trillion, thirteen billion, three hundred thirty-two million, two hundred forty-two thousand, four hundred thirty-two".