40084040440 has 16 divisors (see below), whose sum is σ = 90189091080. Its totient is φ = 16033616160.

The previous prime is 40084040431. The next prime is 40084040543. The reversal of 40084040440 is 4404048004.

It is a junction number, because it is equal to n+sod(n) for n = 40084040399 and 40084040408.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 501050466 + ... + 501050545.

Almost surely, 2^40084040440 is an apocalyptic number.

40084040440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40084040440 is an abundant number, since it is smaller than the sum of its proper divisors (50105050640).

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

40084040440 is a wasteful number, since it uses less digits than its factorization.

40084040440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002101022 (or 1002101018 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 40084040440 its reverse (4404048004), we get a palindrome (44488088444).

The spelling of 40084040440 in words is "forty billion, eighty-four million, forty thousand, four hundred forty".