328946780 has 24 divisors (see below), whose sum is σ = 691732608. Its totient is φ = 131398848.

The previous prime is 328946773. The next prime is 328946803. The reversal of 328946780 is 87649823.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4277 + ... + 26003.

It is an arithmetic number, because the mean of its divisors is an integer number (28822192).

Almost surely, 2^328946780 is an apocalyptic number.

It is an amenable number.

328946780 is an abundant number, since it is smaller than the sum of its proper divisors (362785828).

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

328946780 is a wasteful number, since it uses less digits than its factorization.

328946780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22493 (or 22491 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 47.

The square root of 328946780 is about 18136.8900310941. The cubic root of 328946780 is about 690.3063681846.

The spelling of 328946780 in words is "three hundred twenty-eight million, nine hundred forty-six thousand, seven hundred eighty".