4000444032 has 64 divisors (see below), whose sum is σ = 11443592160. Its totient is φ = 1230904320.

The previous prime is 4000444031. The next prime is 4000444051. The reversal of 4000444032 is 2304440004.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (4000444031) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 395694 + ... + 405677.

Almost surely, 2^4000444032 is an apocalyptic number.

It is an amenable number.

4000444032 is an abundant number, since it is smaller than the sum of its proper divisors (7443148128).

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

4000444032 is a wasteful number, since it uses less digits than its factorization.

4000444032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801401 (or 801389 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 4000444032 is about 63249.0634871379. The cubic root of 4000444032 is about 1587.4597878669.

Adding to 4000444032 its reverse (2304440004), we get a palindrome (6304884036).

The spelling of 4000444032 in words is "four billion, four hundred forty-four thousand, thirty-two".