328280545 has 16 divisors (see below), whose sum is σ = 408241152. Its totient is φ = 253154880.

The previous prime is 328280531. The next prime is 328280581. The reversal of 328280545 is 545082823.

It is not a de Polignac number, because 328280545 - 2⁹ = 328280033 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36739 + ... + 44791.

It is an arithmetic number, because the mean of its divisors is an integer number (25515072).

Almost surely, 2^328280545 is an apocalyptic number.

It is an amenable number.

328280545 is a deficient number, since it is larger than the sum of its proper divisors (79960607).

328280545 is a wasteful number, since it uses less digits than its factorization.

328280545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8352.

The product of its (nonzero) digits is 76800, while the sum is 37.

The square root of 328280545 is about 18118.5138739357. The cubic root of 328280545 is about 689.8400140176.

The spelling of 328280545 in words is "three hundred twenty-eight million, two hundred eighty thousand, five hundred forty-five".