40140404040 has 64 divisors (see below), whose sum is σ = 131368599360. Its totient is φ = 9731006720.

The previous prime is 40140404039. The next prime is 40140404069. The reversal of 40140404040 is 4040404104.

It is a super-2 number, since 2×40140404040² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40140403998 and 40140404016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15203379 + ... + 15206018.

It is an arithmetic number, because the mean of its divisors is an integer number (2052634365).

Almost surely, 2^40140404040 is an apocalyptic number.

40140404040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40140404040 is an abundant number, since it is smaller than the sum of its proper divisors (91228195320).

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

40140404040 is a wasteful number, since it uses less digits than its factorization.

40140404040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30409422 (or 30409418 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 40140404040 its reverse (4040404104), we get a palindrome (44180808144).

The spelling of 40140404040 in words is "forty billion, one hundred forty million, four hundred four thousand, forty".