3220723164 has 24 divisors (see below), whose sum is σ = 7718130448. Its totient is φ = 1044558720.

The previous prime is 3220723147. The next prime is 3220723199. The reversal of 3220723164 is 4613270223.

It is a congruent number.

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, 3626497 + ... + 3627384.

Almost surely, 2^3220723164 is an apocalyptic number.

It is an amenable number.

3220723164 is an abundant number, since it is smaller than the sum of its proper divisors (4497407284).

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

3220723164 is a wasteful number, since it uses less digits than its factorization.

3220723164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7253925 (or 7253923 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 3220723164 is about 56751.4155241964. The cubic root of 3220723164 is about 1476.7867901494.

Adding to 3220723164 its reverse (4613270223), we get a palindrome (7833993387).

The spelling of 3220723164 in words is "three billion, two hundred twenty million, seven hundred twenty-three thousand, one hundred sixty-four".