2040044040 has 48 divisors (see below), whose sum is σ = 6630144300. Its totient is φ = 544011648.

The previous prime is 2040044029. The next prime is 2040044077. The reversal of 2040044040 is 404400402.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2037439044 + 2604996 = 45138^2 + 1614^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

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 11 ways as a sum of consecutive naturals, for example, 2833035 + ... + 2833754.

Almost surely, 2^2040044040 is an apocalyptic number.

2040044040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2040044040 is an abundant number, since it is smaller than the sum of its proper divisors (4590100260).

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

2040044040 is a wasteful number, since it uses less digits than its factorization.

2040044040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5666806 (or 5666799 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 2040044040 is about 45166.8466909081. The cubic root of 2040044040 is about 1268.2742675468.

Adding to 2040044040 its reverse (404400402), we get a palindrome (2444444442).

The spelling of 2040044040 in words is "two billion, forty million, forty-four thousand, forty", and thus it is an eban number.