40384989888 has 112 divisors (see below), whose sum is σ = 109332979200. Its totient is φ = 13150188544.

The previous prime is 40384989851. The next prime is 40384989893. The reversal of 40384989888 is 88898948304.

It is a Smith number, since the sum of its digits (69) 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 (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5076538 + ... + 5084486.

Almost surely, 2^40384989888 is an apocalyptic number.

40384989888 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 40384989888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54666489600).

40384989888 is an abundant number, since it is smaller than the sum of its proper divisors (68947989312).

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

40384989888 is a wasteful number, since it uses less digits than its factorization.

40384989888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8574 (or 8564 counting only the distinct ones).

The product of its (nonzero) digits is 127401984, while the sum is 69.

The spelling of 40384989888 in words is "forty billion, three hundred eighty-four million, nine hundred eighty-nine thousand, eight hundred eighty-eight".