3243220 has 24 divisors (see below), whose sum is σ = 7031808. Its totient is φ = 1255200.

The previous prime is 3243197. The next prime is 3243221. The reversal of 3243220 is 223423.

3243220 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3243194 and 3243203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3243221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1996 + ... + 3235.

It is an arithmetic number, because the mean of its divisors is an integer number (292992).

Almost surely, 2^3243220 is an apocalyptic number.

It is an amenable number.

3243220 is an abundant number, since it is smaller than the sum of its proper divisors (3788588).

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

3243220 is a wasteful number, since it uses less digits than its factorization.

3243220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5271 (or 5269 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 3243220 is about 1800.8942223240. The cubic root of 3243220 is about 148.0217280006.

Adding to 3243220 its reverse (223423), we get a palindrome (3466643).

The spelling of 3243220 in words is "three million, two hundred forty-three thousand, two hundred twenty".