328438780 has 24 divisors (see below), whose sum is σ = 690606000. Its totient is φ = 131207040.

The previous prime is 328438739. The next prime is 328438783. The reversal of 328438780 is 87834823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328438783) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6096 + ... + 26344.

It is an arithmetic number, because the mean of its divisors is an integer number (28775250).

Almost surely, 2^328438780 is an apocalyptic number.

It is an amenable number.

328438780 is an abundant number, since it is smaller than the sum of its proper divisors (362167220).

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

328438780 is a wasteful number, since it uses less digits than its factorization.

328438780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21069 (or 21067 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 43.

The square root of 328438780 is about 18122.8800139492. The cubic root of 328438780 is about 689.9508331556.

The spelling of 328438780 in words is "three hundred twenty-eight million, four hundred thirty-eight thousand, seven hundred eighty".