40243241440 has 96 divisors (see below), whose sum is σ = 97233133536. Its totient is φ = 15735767040.

The previous prime is 40243241417. The next prime is 40243241447. The reversal of 40243241440 is 4414234204.

40243241440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 40243241399 and 40243241408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40243241447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1304595 + ... + 1335085.

It is an arithmetic number, because the mean of its divisors is an integer number (1012845141).

Almost surely, 2^40243241440 is an apocalyptic number.

40243241440 is a gapful number since it is divisible by the number (40) 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 40243241440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48616566768).

40243241440 is an abundant number, since it is smaller than the sum of its proper divisors (56989892096).

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

40243241440 is a wasteful number, since it uses less digits than its factorization.

40243241440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30692 (or 30684 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 40243241440 its reverse (4414234204), we get a palindrome (44657475644).

The spelling of 40243241440 in words is "forty billion, two hundred forty-three million, two hundred forty-one thousand, four hundred forty".