3220465509 has 6 divisors (see below), whose sum is σ = 4651783526. Its totient is φ = 2146977000.

The previous prime is 3220465471. The next prime is 3220465517. The reversal of 3220465509 is 9055640223.

It can be written as a sum of positive squares in only one way, i.e., 3096588609 + 123876900 = 55647^2 + 11130^2 .

It is not a de Polignac number, because 3220465509 - 2⁹ = 3220464997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3220465529) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 178914742 + ... + 178914759.

Almost surely, 2^3220465509 is an apocalyptic number.

It is an amenable number.

3220465509 is a deficient number, since it is larger than the sum of its proper divisors (1431318017).

3220465509 is a wasteful number, since it uses less digits than its factorization.

3220465509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357829507 (or 357829504 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 3220465509 is about 56749.1454473105. The cubic root of 3220465509 is about 1476.7474085542.

The spelling of 3220465509 in words is "three billion, two hundred twenty million, four hundred sixty-five thousand, five hundred nine".