3220285812 has 24 divisors (see below), whose sum is σ = 7516639200. Its totient is φ = 1073051616.

The previous prime is 3220285807. The next prime is 3220285823. The reversal of 3220285812 is 2185820223.

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, 10387 + ... + 80922.

It is an arithmetic number, because the mean of its divisors is an integer number (313193300).

Almost surely, 2^3220285812 is an apocalyptic number.

It is an amenable number.

3220285812 is an abundant number, since it is smaller than the sum of its proper divisors (4296353388).

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

3220285812 is a wasteful number, since it uses less digits than its factorization.

3220285812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94255 (or 94253 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 3220285812 is about 56747.5621679029. The cubic root of 3220285812 is about 1476.7199413020.

The spelling of 3220285812 in words is "three billion, two hundred twenty million, two hundred eighty-five thousand, eight hundred twelve".