2180420044 has 12 divisors (see below), whose sum is σ = 4162620168. Its totient is φ = 991100000.

The previous prime is 2180420003. The next prime is 2180420059. The reversal of 2180420044 is 4400240812.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24777457 + ... + 24777544.

It is an arithmetic number, because the mean of its divisors is an integer number (346885014).

Almost surely, 2^2180420044 is an apocalyptic number.

It is an amenable number.

2180420044 is a deficient number, since it is larger than the sum of its proper divisors (1982200124).

2180420044 is a wasteful number, since it uses less digits than its factorization.

2180420044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49555016 (or 49555014 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

The square root of 2180420044 is about 46694.9680800833. The cubic root of 2180420044 is about 1296.7215306963.

Adding to 2180420044 its reverse (4400240812), we get a palindrome (6580660856).

It can be divided in two parts, 2180 and 420044, that added together give a palindrome (422224).

The spelling of 2180420044 in words is "two billion, one hundred eighty million, four hundred twenty thousand, forty-four".