4000404044040 has 32 divisors (see below), whose sum is σ = 12001212132480. Its totient is φ = 1066774411712.

The previous prime is 4000404044011. The next prime is 4000404044057. The reversal of 4000404044040 is 404404040004.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 4000404044040.

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, 16668350064 + ... + 16668350303.

It is an arithmetic number, because the mean of its divisors is an integer number (375037879140).

Almost surely, 2^{4000404044040} is an apocalyptic number.

4000404044040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4000404044040 is an abundant number, since it is smaller than the sum of its proper divisors (8000808088440).

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

4000404044040 is a wasteful number, since it uses less digits than its factorization.

4000404044040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33336700381 (or 33336700377 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 4000404044040 its reverse (404404040004), we get a palindrome (4404808084044).

The spelling of 4000404044040 in words is "four trillion, four hundred four million, forty-four thousand, forty".