329490 has 48 divisors (see below), whose sum is σ = 980928. Its totient is φ = 75168.

The previous prime is 329489. The next prime is 329503. The reversal of 329490 is 94923.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a nialpdrome in base 14.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 329490.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 369 + ... + 891.

It is an arithmetic number, because the mean of its divisors is an integer number (20436).

2³²⁹⁴⁹⁰ is an apocalyptic number.

329490 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 329490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (490464).

329490 is an abundant number, since it is smaller than the sum of its proper divisors (651438).

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

329490 is a wasteful number, since it uses less digits than its factorization.

329490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543 (or 540 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 329490 is about 574.0121949924. The cubic root of 329490 is about 69.0686147954.

The spelling of 329490 in words is "three hundred twenty-nine thousand, four hundred ninety".