40408423378368 has 112 divisors (see below), whose sum is σ = 107362915860480. Its totient is φ = 13412984361984.

The previous prime is 40408423378319. The next prime is 40408423378373. The reversal of 40408423378368 is 86387332480404.

It is a happy number.

It is a congruent number.

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, 71670621 + ... + 72232227.

It is an arithmetic number, because the mean of its divisors is an integer number (958597463040).

Almost surely, 2^{40408423378368} is an apocalyptic number.

40408423378368 is a gapful number since it is divisible by the number (48) 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 40408423378368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53681457930240).

40408423378368 is an abundant number, since it is smaller than the sum of its proper divisors (66954492482112).

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

40408423378368 is a wasteful number, since it uses less digits than its factorization.

40408423378368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563194 (or 563184 counting only the distinct ones).

The product of its (nonzero) digits is 74317824, while the sum is 60.

The spelling of 40408423378368 in words is "forty trillion, four hundred eight billion, four hundred twenty-three million, three hundred seventy-eight thousand, three hundred sixty-eight".