3218134220 has 24 divisors (see below), whose sum is σ = 7723522464. Its totient is φ = 1103360256.

The previous prime is 3218134193. The next prime is 3218134243. The reversal of 3218134220 is 224318123.

It is a self number, because there is not a number n which added to its sum of digits gives 3218134220.

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, 11493197 + ... + 11493476.

It is an arithmetic number, because the mean of its divisors is an integer number (321813436).

Almost surely, 2^3218134220 is an apocalyptic number.

It is an amenable number.

3218134220 is an abundant number, since it is smaller than the sum of its proper divisors (4505388244).

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

3218134220 is a wasteful number, since it uses less digits than its factorization.

3218134220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22986689 (or 22986687 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 3218134220 is about 56728.6014282037. The cubic root of 3218134220 is about 1476.3909843001.

The spelling of 3218134220 in words is "three billion, two hundred eighteen million, one hundred thirty-four thousand, two hundred twenty".