40004404004 has 12 divisors (see below), whose sum is σ = 71497233024. Its totient is φ = 19576623144.

The previous prime is 40004404001. The next prime is 40004404021. The reversal of 40004404004 is 40040440004.

It is not an unprimeable number, because it can be changed into a prime (40004404001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106394504 + ... + 106394879.

It is an arithmetic number, because the mean of its divisors is an integer number (5958102752).

Almost surely, 2^40004404004 is an apocalyptic number.

It is an amenable number.

40004404004 is a deficient number, since it is larger than the sum of its proper divisors (31492829020).

40004404004 is a wasteful number, since it uses less digits than its factorization.

40004404004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212789434 (or 212789432 counting only the distinct ones).

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

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

The spelling of 40004404004 in words is "forty billion, four million, four hundred four thousand, four".