328440566 has 16 divisors (see below), whose sum is σ = 504709056. Its totient is φ = 160250376.

The previous prime is 328440547. The next prime is 328440589. The reversal of 328440566 is 665044823.

328440566 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2885 + ... + 25791.

It is an arithmetic number, because the mean of its divisors is an integer number (31544316).

Almost surely, 2^328440566 is an apocalyptic number.

328440566 is a deficient number, since it is larger than the sum of its proper divisors (176268490).

328440566 is a wasteful number, since it uses less digits than its factorization.

328440566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23083.

The product of its (nonzero) digits is 138240, while the sum is 38.

The square root of 328440566 is about 18122.9292886112. The cubic root of 328440566 is about 689.9520837691.

The spelling of 328440566 in words is "three hundred twenty-eight million, four hundred forty thousand, five hundred sixty-six".