328908946 has 16 divisors (see below), whose sum is σ = 516261888. Its totient is φ = 156967200.

The previous prime is 328908913. The next prime is 328908949. The reversal of 328908946 is 649809823.

It is a self number, because there is not a number n which added to its sum of digits gives 328908946.

It is not an unprimeable number, because it can be changed into a prime (328908949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31810 + ... + 40861.

It is an arithmetic number, because the mean of its divisors is an integer number (32266368).

Almost surely, 2^328908946 is an apocalyptic number.

328908946 is a deficient number, since it is larger than the sum of its proper divisors (187352942).

328908946 is a wasteful number, since it uses less digits than its factorization.

328908946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72777.

The product of its (nonzero) digits is 746496, while the sum is 49.

The square root of 328908946 is about 18135.8469887679. The cubic root of 328908946 is about 690.2799018440.

The spelling of 328908946 in words is "three hundred twenty-eight million, nine hundred eight thousand, nine hundred forty-six".