4044681536 has 56 divisors (see below), whose sum is σ = 9180307776. Its totient is φ = 1732008960.

The previous prime is 4044681521. The next prime is 4044681607. The reversal of 4044681536 is 6351864404.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a junction number, because it is equal to n+sod(n) for n = 4044681493 and 4044681502.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 682940 + ... + 688836.

Almost surely, 2^4044681536 is an apocalyptic number.

It is an amenable number.

4044681536 is an abundant number, since it is smaller than the sum of its proper divisors (5135626240).

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

4044681536 is a wasteful number, since it uses less digits than its factorization.

4044681536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7447 (or 7437 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 41.

The square root of 4044681536 is about 63597.8107799317. The cubic root of 4044681536 is about 1593.2898059844.

The spelling of 4044681536 in words is "four billion, forty-four million, six hundred eighty-one thousand, five hundred thirty-six".