4000044040 has 64 divisors (see below), whose sum is σ = 9405538560. Its totient is φ = 1529525760.

The previous prime is 4000043923. The next prime is 4000044077. The reversal of 4000044040 is 404400004.

4000044040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56100 + ... + 105580.

It is an arithmetic number, because the mean of its divisors is an integer number (146961540).

Almost surely, 2^4000044040 is an apocalyptic number.

4000044040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4000044040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4702769280).

4000044040 is an abundant number, since it is smaller than the sum of its proper divisors (5405494520).

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

4000044040 is a wasteful number, since it uses less digits than its factorization.

4000044040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49582 (or 49578 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 4000044040 is about 63245.9013691796. The cubic root of 4000044040 is about 1587.4068777087.

Adding to 4000044040 its reverse (404400004), we get a palindrome (4404444044).

The spelling of 4000044040 in words is "four billion, forty-four thousand, forty", and thus it is an eban number.