2180806044 has 24 divisors (see below), whose sum is σ = 5089314048. Its totient is φ = 726825840.

The previous prime is 2180806037. The next prime is 2180806051. The reversal of 2180806044 is 4406080812.

It is an interprime number because it is at equal distance from previous prime (2180806037) and next prime (2180806051).

It is a junction number, because it is equal to n+sod(n) for n = 2180805996 and 2180806014.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 127699 + ... + 143765.

It is an arithmetic number, because the mean of its divisors is an integer number (212054752).

Almost surely, 2^2180806044 is an apocalyptic number.

It is an amenable number.

2180806044 is an abundant number, since it is smaller than the sum of its proper divisors (2908508004).

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

2180806044 is a wasteful number, since it uses less digits than its factorization.

2180806044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27385 (or 27383 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 2180806044 is about 46699.1011048393. The cubic root of 2180806044 is about 1296.7980457664.

Adding to 2180806044 its reverse (4406080812), we get a palindrome (6586886856).

The spelling of 2180806044 in words is "two billion, one hundred eighty million, eight hundred six thousand, forty-four".