2004444440 has 32 divisors (see below), whose sum is σ = 4511430000. Its totient is φ = 801523584.

The previous prime is 2004444433. The next prime is 2004444443. The reversal of 2004444440 is 444444002.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2004444443) 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 7 ways as a sum of consecutive naturals, for example, 167786 + ... + 179334.

Almost surely, 2^2004444440 is an apocalyptic number.

2004444440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2004444440 is an abundant number, since it is smaller than the sum of its proper divisors (2506985560).

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

2004444440 is a wasteful number, since it uses less digits than its factorization.

2004444440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15899 (or 15895 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

The square root of 2004444440 is about 44771.0223247136. The cubic root of 2004444440 is about 1260.8536333523.

Adding to 2004444440 its reverse (444444002), we get a palindrome (2448888442).

The spelling of 2004444440 in words is "two billion, four million, four hundred forty-four thousand, four hundred forty".