3201818 has 4 divisors (see below), whose sum is σ = 4802730. Its totient is φ = 1600908.

The previous prime is 3201817. The next prime is 3201833. The reversal of 3201818 is 8181023.

3201818 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2582449 + 619369 = 1607^2 + 787^2 .

3201818 is a modest number, since divided by 1818 gives 320 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 3201793 and 3201802.

It is not an unprimeable number, because it can be changed into a prime (3201817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 800453 + ... + 800456.

Almost surely, 2^3201818 is an apocalyptic number.

3201818 is a deficient number, since it is larger than the sum of its proper divisors (1600912).

3201818 is a wasteful number, since it uses less digits than its factorization.

3201818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1600911.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 3201818 is about 1789.3624562955. The cubic root of 3201818 is about 147.3891612011.

The spelling of 3201818 in words is "three million, two hundred one thousand, eight hundred eighteen".