40518935940 has 432 divisors, whose sum is σ = 143164723968. Its totient is φ = 8507971584.

The previous prime is 40518935929. The next prime is 40518936037. The reversal of 40518935940 is 4953981504.

It is a self number, because there is not a number n which added to its sum of digits gives 40518935940.

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 143 ways as a sum of consecutive naturals, for example, 110405637 + ... + 110406003.

It is an arithmetic number, because the mean of its divisors is an integer number (331399824).

Almost surely, 2^40518935940 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 40518935940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71582361984).

40518935940 is an abundant number, since it is smaller than the sum of its proper divisors (102645788028).

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

40518935940 is a wasteful number, since it uses less digits than its factorization.

40518935940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504 (or 448 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 48.

The spelling of 40518935940 in words is "forty billion, five hundred eighteen million, nine hundred thirty-five thousand, nine hundred forty".