329986720 has 96 divisors (see below), whose sum is σ = 915159168. Its totient is φ = 110066688.

The previous prime is 329986717. The next prime is 329986729. The reversal of 329986720 is 27689923.

It is not an unprimeable number, because it can be changed into a prime (329986729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37459 + ... + 45421.

It is an arithmetic number, because the mean of its divisors is an integer number (9532908).

Almost surely, 2^329986720 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 329986720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (457579584).

329986720 is an abundant number, since it is smaller than the sum of its proper divisors (585172448).

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

329986720 is a wasteful number, since it uses less digits than its factorization.

329986720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8022 (or 8014 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 329986720 is about 18165.5366009375. The cubic root of 329986720 is about 691.0330531373.

The spelling of 329986720 in words is "three hundred twenty-nine million, nine hundred eighty-six thousand, seven hundred twenty".