40488990384 has 120 divisors (see below), whose sum is σ = 109205770800. Its totient is φ = 12924887040.

The previous prime is 40488990301. The next prime is 40488990397. The reversal of 40488990384 is 48309988404.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

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 23 ways as a sum of consecutive naturals, for example, 4469892 + ... + 4478940.

It is an arithmetic number, because the mean of its divisors is an integer number (910048090).

Almost surely, 2^40488990384 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 40488990384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54602885400).

40488990384 is an abundant number, since it is smaller than the sum of its proper divisors (68716780416).

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

40488990384 is a wasteful number, since it uses less digits than its factorization.

40488990384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9219 (or 9182 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 57.

The spelling of 40488990384 in words is "forty billion, four hundred eighty-eight million, nine hundred ninety thousand, three hundred eighty-four".