2044915881 has 8 divisors (see below), whose sum is σ = 2730694560. Its totient is φ = 1361207232.

The previous prime is 2044915861. The next prime is 2044915891. The reversal of 2044915881 is 1885194402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2044915881 - 2⁵ = 2044915849 is a prime.

It is a super-3 number, since 3×2044915881³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2044915861) 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, 515200 + ... + 519153.

It is an arithmetic number, because the mean of its divisors is an integer number (341336820).

Almost surely, 2^2044915881 is an apocalyptic number.

It is an amenable number.

2044915881 is a deficient number, since it is larger than the sum of its proper divisors (685778679).

2044915881 is a wasteful number, since it uses less digits than its factorization.

2044915881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035015.

The product of its (nonzero) digits is 92160, while the sum is 42.

The square root of 2044915881 is about 45220.7461349324. The cubic root of 2044915881 is about 1269.2830559851.

The spelling of 2044915881 in words is "two billion, forty-four million, nine hundred fifteen thousand, eight hundred eighty-one".