3220505304 has 16 divisors (see below), whose sum is σ = 8051263320. Its totient is φ = 1073501760.

The previous prime is 3220505297. The next prime is 3220505329. The reversal of 3220505304 is 4035050223.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 134187721 = 3220505304 / (3 + 2 + 2 + 0 + 5 + 0 + 5 + 3 + 0 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67093837 + ... + 67093884.

Almost surely, 2^3220505304 is an apocalyptic number.

It is an amenable number.

3220505304 is an abundant number, since it is smaller than the sum of its proper divisors (4830758016).

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

3220505304 is a wasteful number, since it uses less digits than its factorization.

3220505304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134187730 (or 134187726 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 3220505304 is about 56749.4960682472. The cubic root of 3220505304 is about 1476.7534912070.

Adding to 3220505304 its reverse (4035050223), we get a palindrome (7255555527).

The spelling of 3220505304 in words is "three billion, two hundred twenty million, five hundred five thousand, three hundred four".