328121716 has 48 divisors (see below), whose sum is σ = 656913600. Its totient is φ = 142152192.

The previous prime is 328121707. The next prime is 328121723. The reversal of 328121716 is 617121823.

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 15 ways as a sum of consecutive naturals, for example, 110175 + ... + 113113.

It is an arithmetic number, because the mean of its divisors is an integer number (13685700).

Almost surely, 2^328121716 is an apocalyptic number.

It is an amenable number.

328121716 is an abundant number, since it is smaller than the sum of its proper divisors (328791884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

328121716 is a wasteful number, since it uses less digits than its factorization.

328121716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3088 (or 3086 counting only the distinct ones).

The product of its digits is 4032, while the sum is 31.

The square root of 328121716 is about 18114.1302854981. The cubic root of 328121716 is about 689.7287430573.

The spelling of 328121716 in words is "three hundred twenty-eight million, one hundred twenty-one thousand, seven hundred sixteen".