328545855 has 48 divisors (see below), whose sum is σ = 642038880. Its totient is φ = 159287040.

The previous prime is 328545803. The next prime is 328545863. The reversal of 328545855 is 558545823.

328545855 is a `hidden beast` number, since 3 + 28 + 545 + 85 + 5 = 666.

It is not a de Polignac number, because 328545855 - 2⁸ = 328545599 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 328545855.

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 47 ways as a sum of consecutive naturals, for example, 6279 + ... + 26391.

It is an arithmetic number, because the mean of its divisors is an integer number (13375810).

Almost surely, 2^328545855 is an apocalyptic number.

328545855 is a deficient number, since it is larger than the sum of its proper divisors (313493025).

328545855 is a wasteful number, since it uses less digits than its factorization.

328545855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20149 (or 20132 counting only the distinct ones).

The product of its digits is 960000, while the sum is 45.

The square root of 328545855 is about 18125.8339118508. The cubic root of 328545855 is about 690.0258024378.

The spelling of 328545855 in words is "three hundred twenty-eight million, five hundred forty-five thousand, eight hundred fifty-five".