2180803490 has 16 divisors (see below), whose sum is σ = 3969554040. Its totient is φ = 862519680.

The previous prime is 2180803483. The next prime is 2180803507. The reversal of 2180803490 is 943080812.

It is a happy number.

2180803490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1723827361 + 456976129 = 41519^2 + 21377^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2180803490.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1224281 + ... + 1226060.

Almost surely, 2^2180803490 is an apocalyptic number.

2180803490 is a deficient number, since it is larger than the sum of its proper divisors (1788750550).

2180803490 is a wasteful number, since it uses less digits than its factorization.

2180803490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2450437.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 2180803490 is about 46699.0737595512. The cubic root of 2180803490 is about 1296.7975395279.

The spelling of 2180803490 in words is "two billion, one hundred eighty million, eight hundred three thousand, four hundred ninety".