4040444020 has 24 divisors (see below), whose sum is σ = 8486133768. Its totient is φ = 1615948800.

The previous prime is 4040444011. The next prime is 4040444039. The reversal of 4040444020 is 204440404.

It can be written as a sum of positive squares in 4 ways, for example, as 2085566224 + 1954877796 = 45668^2 + 44214^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4040443982 and 4040444000.

It is a congruent number.

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, 246480 + ... + 262360.

It is an arithmetic number, because the mean of its divisors is an integer number (353588907).

Almost surely, 2^4040444020 is an apocalyptic number.

It is an amenable number.

4040444020 is an abundant number, since it is smaller than the sum of its proper divisors (4445689748).

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

4040444020 is a wasteful number, since it uses less digits than its factorization.

4040444020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28611 (or 28609 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 4040444020 is about 63564.4870977498. The cubic root of 4040444020 is about 1592.7331943628.

Adding to 4040444020 its reverse (204440404), we get a palindrome (4244884424).

The spelling of 4040444020 in words is "four billion, forty million, four hundred forty-four thousand, twenty".