4000040444 has 12 divisors (see below), whose sum is σ = 7062019104. Its totient is φ = 1982320704.

The previous prime is 4000040419. The next prime is 4000040459. The reversal of 4000040444 is 4440400004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4424372 + ... + 4425275.

It is an arithmetic number, because the mean of its divisors is an integer number (588501592).

Almost surely, 2^4000040444 is an apocalyptic number.

It is an amenable number.

4000040444 is a deficient number, since it is larger than the sum of its proper divisors (3061978660).

4000040444 is a wasteful number, since it uses less digits than its factorization.

4000040444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8849764 (or 8849762 counting only the distinct ones).

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

The square root of 4000040444 is about 63245.8729404536. The cubic root of 4000040444 is about 1587.4064020208.

Adding to 4000040444 its reverse (4440400004), we get a palindrome (8440440448).

The spelling of 4000040444 in words is "four billion, forty thousand, four hundred forty-four".