2005015044 has 12 divisors (see below), whose sum is σ = 4678368464. Its totient is φ = 668338344.

The previous prime is 2005015043. The next prime is 2005015063. The reversal of 2005015044 is 4405105002.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 2005015044.

It is not an unprimeable number, because it can be changed into a prime (2005015043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83542282 + ... + 83542305.

Almost surely, 2^2005015044 is an apocalyptic number.

It is an amenable number.

2005015044 is an abundant number, since it is smaller than the sum of its proper divisors (2673353420).

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

2005015044 is a wasteful number, since it uses less digits than its factorization.

2005015044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167084594 (or 167084592 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 2005015044 is about 44777.3943413415. The cubic root of 2005015044 is about 1260.9732641512.

The spelling of 2005015044 in words is "two billion, five million, fifteen thousand, forty-four".