40040440004 has 24 divisors (see below), whose sum is σ = 70227343200. Its totient is φ = 19975533120.

The previous prime is 40040440003. The next prime is 40040440019. The reversal of 40040440004 is 40004404004.

It is not an unprimeable number, because it can be changed into a prime (40040440003) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4027712 + ... + 4037640.

It is an arithmetic number, because the mean of its divisors is an integer number (2926139300).

Almost surely, 2^40040440004 is an apocalyptic number.

It is an amenable number.

40040440004 is a deficient number, since it is larger than the sum of its proper divisors (30186903196).

40040440004 is a wasteful number, since it uses less digits than its factorization.

40040440004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12083 (or 12081 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 40040440004 its reverse (40004404004), we get a palindrome (80044844008).

The spelling of 40040440004 in words is "forty billion, forty million, four hundred forty thousand, four".