329217980 has 96 divisors (see below), whose sum is σ = 867210624. Its totient is φ = 102196224.

The previous prime is 329217979. The next prime is 329218003. The reversal of 329217980 is 89712923.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 94754 + ... + 98166.

It is an arithmetic number, because the mean of its divisors is an integer number (9033444).

Almost surely, 2^329217980 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 329217980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (433605312).

329217980 is an abundant number, since it is smaller than the sum of its proper divisors (537992644).

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

329217980 is a wasteful number, since it uses less digits than its factorization.

329217980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3495 (or 3493 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 329217980 is about 18144.3649654652. The cubic root of 329217980 is about 690.4960236479.

The spelling of 329217980 in words is "three hundred twenty-nine million, two hundred seventeen thousand, nine hundred eighty".