3243220172 has 6 divisors (see below), whose sum is σ = 5675635308. Its totient is φ = 1621610084.

The previous prime is 3243220151. The next prime is 3243220193. The reversal of 3243220172 is 2710223423.

It is a happy number.

3243220172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3243220151) and next prime (3243220193).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 405402518 + ... + 405402525.

It is an arithmetic number, because the mean of its divisors is an integer number (945939218).

Almost surely, 2^3243220172 is an apocalyptic number.

It is an amenable number.

3243220172 is a deficient number, since it is larger than the sum of its proper divisors (2432415136).

3243220172 is a wasteful number, since it uses less digits than its factorization.

3243220172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810805047 (or 810805045 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 3243220172 is about 56949.2771859310. The cubic root of 3243220172 is about 1480.2173061730.

Adding to 3243220172 its reverse (2710223423), we get a palindrome (5953443595).

The spelling of 3243220172 in words is "three billion, two hundred forty-three million, two hundred twenty thousand, one hundred seventy-two".