4044040040 has 32 divisors (see below), whose sum is σ = 9101025000. Its totient is φ = 1617272064.

The previous prime is 4044040037. The next prime is 4044040153. The reversal of 4044040040 is 400404404.

It can be written as a sum of positive squares in 4 ways, for example, as 4025394916 + 18645124 = 63446^2 + 4318^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 4044039994 and 4044040021.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270686 + ... + 285234.

Almost surely, 2^4044040040 is an apocalyptic number.

4044040040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4044040040 is an abundant number, since it is smaller than the sum of its proper divisors (5056984960).

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

4044040040 is a wasteful number, since it uses less digits than its factorization.

4044040040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21509 (or 21505 counting only the distinct ones).

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

The square root of 4044040040 is about 63592.7671987939. The cubic root of 4044040040 is about 1593.2055683612.

Adding to 4044040040 its reverse (400404404), we get a palindrome (4444444444).

The spelling of 4044040040 in words is "four billion, forty-four million, forty thousand, forty", and thus it is an eban number.