2040020440 has 16 divisors (see below), whose sum is σ = 4590046080. Its totient is φ = 816008160.

The previous prime is 2040020407. The next prime is 2040020449. The reversal of 2040020440 is 440200402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2040020449) 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 3 ways as a sum of consecutive naturals, for example, 25500216 + ... + 25500295.

It is an arithmetic number, because the mean of its divisors is an integer number (286877880).

Almost surely, 2^2040020440 is an apocalyptic number.

2040020440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2040020440 is an abundant number, since it is smaller than the sum of its proper divisors (2550025640).

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

2040020440 is a wasteful number, since it uses less digits than its factorization.

2040020440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51000522 (or 51000518 counting only the distinct ones).

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

The square root of 2040020440 is about 45166.5854365813. The cubic root of 2040020440 is about 1268.2693769026.

Adding to 2040020440 its reverse (440200402), we get a palindrome (2480220842).

The spelling of 2040020440 in words is "two billion, forty million, twenty thousand, four hundred forty".