328541866 has 4 divisors (see below), whose sum is σ = 492812802. Its totient is φ = 164270932.

The previous prime is 328541747. The next prime is 328541869. The reversal of 328541866 is 668145823.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 296562841 + 31979025 = 17221^2 + 5655^2 .

It is not an unprimeable number, because it can be changed into a prime (328541869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82135465 + ... + 82135468.

Almost surely, 2^328541866 is an apocalyptic number.

328541866 is a deficient number, since it is larger than the sum of its proper divisors (164270936).

328541866 is a wasteful number, since it uses less digits than its factorization.

328541866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164270935.

The product of its digits is 276480, while the sum is 43.

The square root of 328541866 is about 18125.7238752001. The cubic root of 328541866 is about 690.0230098047.

The spelling of 328541866 in words is "three hundred twenty-eight million, five hundred forty-one thousand, eight hundred sixty-six".