328666100 has 144 divisors (see below), whose sum is σ = 877443840. Its totient is φ = 104294400.

The previous prime is 328666087. The next prime is 328666133. The reversal of 328666100 is 1666823.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 844706 + ... + 845094.

It is an arithmetic number, because the mean of its divisors is an integer number (6093360).

Almost surely, 2^328666100 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 328666100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (438721920).

328666100 is an abundant number, since it is smaller than the sum of its proper divisors (548777740).

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

328666100 is a wasteful number, since it uses less digits than its factorization.

328666100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498 (or 491 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 328666100 is about 18129.1505592513. The cubic root of 328666100 is about 690.1099733696.

The spelling of 328666100 in words is "three hundred twenty-eight million, six hundred sixty-six thousand, one hundred".