328310506 has 4 divisors (see below), whose sum is σ = 492465762. Its totient is φ = 164155252.

The previous prime is 328310503. The next prime is 328310531. The reversal of 328310506 is 605013823.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 605013823 = 1373 ⋅440651.

It can be written as a sum of positive squares in only one way, i.e., 188101225 + 140209281 = 13715^2 + 11841^2 .

It is not an unprimeable number, because it can be changed into a prime (328310503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82077625 + ... + 82077628.

Almost surely, 2^328310506 is an apocalyptic number.

328310506 is a deficient number, since it is larger than the sum of its proper divisors (164155256).

328310506 is a wasteful number, since it uses less digits than its factorization.

328310506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164155255.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 328310506 is about 18119.3406612934. The cubic root of 328310506 is about 689.8609997956.

The spelling of 328310506 in words is "three hundred twenty-eight million, three hundred ten thousand, five hundred six".