329497980 has 96 divisors (see below), whose sum is σ = 1061082624. Its totient is φ = 74836224.

The previous prime is 329497967. The next prime is 329497997. The reversal of 329497980 is 89794923.

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, 66054 + ... + 70866.

It is an arithmetic number, because the mean of its divisors is an integer number (11052944).

Almost surely, 2^329497980 is an apocalyptic number.

329497980 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 329497980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (530541312).

329497980 is an abundant number, since it is smaller than the sum of its proper divisors (731584644).

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

329497980 is a wasteful number, since it uses less digits than its factorization.

329497980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4995 (or 4993 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 51.

The square root of 329497980 is about 18152.0792197478. The cubic root of 329497980 is about 690.6917238756.

The spelling of 329497980 in words is "three hundred twenty-nine million, four hundred ninety-seven thousand, nine hundred eighty".