4008400040044 has 24 divisors (see below), whose sum is σ = 7298531901360. Its totient is φ = 1923904175424.

The previous prime is 4008400040039. The next prime is 4008400040063. The reversal of 4008400040044 is 4400400048004.

It is a junction number, because it is equal to n+sod(n) for n = 4008400039994 and 4008400040021.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99850374 + ... + 99890509.

It is an arithmetic number, because the mean of its divisors is an integer number (304105495890).

Almost surely, 2^{4008400040044} is an apocalyptic number.

It is an amenable number.

4008400040044 is a deficient number, since it is larger than the sum of its proper divisors (3290131861316).

4008400040044 is a wasteful number, since it uses less digits than its factorization.

4008400040044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199741089 (or 199741087 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 4008400040044 its reverse (4400400048004), we get a palindrome (8408800088048).

The spelling of 4008400040044 in words is "four trillion, eight billion, four hundred million, forty thousand, forty-four".