2008639044 has 36 divisors (see below), whose sum is σ = 5079110400. Its totient is φ = 669319920.

The previous prime is 2008639033. The next prime is 2008639109. The reversal of 2008639044 is 4409368002.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 124557 + ... + 139755.

It is an arithmetic number, because the mean of its divisors is an integer number (141086400).

Almost surely, 2^2008639044 is an apocalyptic number.

It is an amenable number.

2008639044 is an abundant number, since it is smaller than the sum of its proper divisors (3070471356).

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

2008639044 is a wasteful number, since it uses less digits than its factorization.

2008639044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18880 (or 18875 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 2008639044 is about 44817.8429199800. The cubic root of 2008639044 is about 1261.7325297152.

The spelling of 2008639044 in words is "two billion, eight million, six hundred thirty-nine thousand, forty-four".