3220516 has 12 divisors (see below), whose sum is σ = 6069532. Its totient is φ = 1486368.

The previous prime is 3220513. The next prime is 3220523. The reversal of 3220516 is 6150223.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 910116 + 2310400 = 954^2 + 1520^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3220493 and 3220502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3220513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30915 + ... + 31018.

Almost surely, 2^3220516 is an apocalyptic number.

It is an amenable number.

3220516 is a deficient number, since it is larger than the sum of its proper divisors (2849016).

3220516 is a wasteful number, since it uses less digits than its factorization.

3220516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61950 (or 61948 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 3220516 is about 1794.5796165119. The cubic root of 3220516 is about 147.6755126079.

Adding to 3220516 its reverse (6150223), we get a palindrome (9370739).

The spelling of 3220516 in words is "three million, two hundred twenty thousand, five hundred sixteen".