2043180909 has 64 divisors (see below), whose sum is σ = 3835944960. Its totient is φ = 1043928000.

The previous prime is 2043180869. The next prime is 2043180967. The reversal of 2043180909 is 9090813402.

It is not a de Polignac number, because 2043180909 - 2⁸ = 2043180653 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2043180509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 118764 + ... + 134874.

It is an arithmetic number, because the mean of its divisors is an integer number (59936640).

Almost surely, 2^2043180909 is an apocalyptic number.

It is an amenable number.

2043180909 is a deficient number, since it is larger than the sum of its proper divisors (1792764051).

2043180909 is a wasteful number, since it uses less digits than its factorization.

2043180909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16199 (or 16193 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 2043180909 is about 45201.5587010006. The cubic root of 2043180909 is about 1268.9239876450.

The spelling of 2043180909 in words is "two billion, forty-three million, one hundred eighty thousand, nine hundred nine".