3220812138 has 16 divisors (see below), whose sum is σ = 6455423520. Its totient is φ = 1071304176.

The previous prime is 3220812137. The next prime is 3220812167. The reversal of 3220812138 is 8312180223.

It is not an unprimeable number, because it can be changed into a prime (3220812131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 571933 + ... + 577536.

It is an arithmetic number, because the mean of its divisors is an integer number (403463970).

Almost surely, 2^3220812138 is an apocalyptic number.

3220812138 is an abundant number, since it is smaller than the sum of its proper divisors (3234611382).

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

3220812138 is a wasteful number, since it uses less digits than its factorization.

3220812138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149941.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 3220812138 is about 56752.1994111241. The cubic root of 3220812138 is about 1476.8003890019.

The spelling of 3220812138 in words is "three billion, two hundred twenty million, eight hundred twelve thousand, one hundred thirty-eight".