3228568866 has 48 divisors (see below), whose sum is σ = 7216006200. Its totient is φ = 1042481664.

The previous prime is 3228568853. The next prime is 3228568867. The reversal of 3228568866 is 6688658223.

It can be written as a sum of positive squares in 4 ways, for example, as 2727032841 + 501536025 = 52221^2 + 22395^2 .

It is not an unprimeable number, because it can be changed into a prime (3228568867) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 141930 + ... + 163098.

Almost surely, 2^3228568866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3228568866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3608003100).

3228568866 is an abundant number, since it is smaller than the sum of its proper divisors (3987437334).

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

3228568866 is a wasteful number, since it uses less digits than its factorization.

3228568866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21443 (or 21440 counting only the distinct ones).

The product of its digits is 6635520, while the sum is 54.

The square root of 3228568866 is about 56820.4968827271. The cubic root of 3228568866 is about 1477.9849717368.

The spelling of 3228568866 in words is "three billion, two hundred twenty-eight million, five hundred sixty-eight thousand, eight hundred sixty-six".