328005020 has 36 divisors (see below), whose sum is σ = 801271800. Its totient is φ = 112458528.

The previous prime is 328005011. The next prime is 328005053. The reversal of 328005020 is 20500823.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 328004983 and 328005001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 166370 + ... + 168329.

It is an arithmetic number, because the mean of its divisors is an integer number (22257550).

Almost surely, 2^328005020 is an apocalyptic number.

It is an amenable number.

328005020 is an abundant number, since it is smaller than the sum of its proper divisors (473266780).

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

328005020 is a wasteful number, since it uses less digits than its factorization.

328005020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334722 (or 334713 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 328005020 is about 18110.9088673098. The cubic root of 328005020 is about 689.6469663616.

Adding to 328005020 its reverse (20500823), we get a palindrome (348505843).

The spelling of 328005020 in words is "three hundred twenty-eight million, five thousand, twenty".