40000444004 has 24 divisors (see below), whose sum is σ = 70363966848. Its totient is φ = 19896539040.

The previous prime is 40000443943. The next prime is 40000444021. The reversal of 40000444004 is 40044400004.

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, 2136974 + ... + 2155610.

It is an arithmetic number, because the mean of its divisors is an integer number (2931831952).

Almost surely, 2^40000444004 is an apocalyptic number.

It is an amenable number.

40000444004 is a deficient number, since it is larger than the sum of its proper divisors (30363522844).

40000444004 is a wasteful number, since it uses less digits than its factorization.

40000444004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21395 (or 21393 counting only the distinct ones).

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

Adding to 40000444004 its reverse (40044400004), we get a palindrome (80044844008).

The spelling of 40000444004 in words is "forty billion, four hundred forty-four thousand, four".