40004400044 has 48 divisors (see below), whose sum is σ = 80459850240. Its totient is φ = 17048361600.

The previous prime is 40004400019. The next prime is 40004400071. The reversal of 40004400044 is 44000440004.

It is a junction number, because it is equal to n+sod(n) for n = 40004399989 and 40004400025.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3768344 + ... + 3778944.

It is an arithmetic number, because the mean of its divisors is an integer number (1676246880).

Almost surely, 2^40004400044 is an apocalyptic number.

It is an amenable number.

40004400044 is an abundant number, since it is smaller than the sum of its proper divisors (40455450196).

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

40004400044 is a wasteful number, since it uses less digits than its factorization.

40004400044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11358 (or 11356 counting only the distinct ones).

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

Adding to 40004400044 its reverse (44000440004), we get a palindrome (84004840048).

It can be divided in two parts, 4000 and 4400044, that added together give a palindrome (4404044).

The spelling of 40004400044 in words is "forty billion, four million, four hundred thousand, forty-four".