40384034336 has 96 divisors (see below), whose sum is σ = 82728366336. Its totient is φ = 19393920000.

The previous prime is 40384034333. The next prime is 40384034351. The reversal of 40384034336 is 63343048304.

It is a self number, because there is not a number n which added to its sum of digits gives 40384034336.

It is not an unprimeable number, because it can be changed into a prime (40384034333) 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, 18181706 + ... + 18183926.

It is an arithmetic number, because the mean of its divisors is an integer number (861753816).

Almost surely, 2^40384034336 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 40384034336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41364183168).

40384034336 is an abundant number, since it is smaller than the sum of its proper divisors (42344332000).

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

40384034336 is a wasteful number, since it uses less digits than its factorization.

40384034336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2506 (or 2498 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 38.

The spelling of 40384034336 in words is "forty billion, three hundred eighty-four million, thirty-four thousand, three hundred thirty-six".