40303321984 has 64 divisors (see below), whose sum is σ = 81519183360. Its totient is φ = 19845955584.

The previous prime is 40303321979. The next prime is 40303321997. The reversal of 40303321984 is 48912330304.

It is a tau number, because it is divible by the number of its divisors (64).

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, 2218024 + ... + 2236120.

It is an arithmetic number, because the mean of its divisors is an integer number (1273737240).

Almost surely, 2^40303321984 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 40303321984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40759591680).

40303321984 is an abundant number, since it is smaller than the sum of its proper divisors (41215861376).

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

40303321984 is a wasteful number, since it uses less digits than its factorization.

40303321984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18375 (or 18363 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 37.

The spelling of 40303321984 in words is "forty billion, three hundred three million, three hundred twenty-one thousand, nine hundred eighty-four".