324990 has 48 divisors (see below), whose sum is σ = 887328. Its totient is φ = 82368.

The previous prime is 324983. The next prime is 324991. The reversal of 324990 is 99423.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (324991) 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 23 ways as a sum of consecutive naturals, for example, 1992 + ... + 2148.

It is an arithmetic number, because the mean of its divisors is an integer number (18486).

2³²⁴⁹⁹⁰ is an apocalyptic number.

324990 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 324990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (443664).

324990 is an abundant number, since it is smaller than the sum of its proper divisors (562338).

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

324990 is a wasteful number, since it uses less digits than its factorization.

324990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193 (or 190 counting only the distinct ones).

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

The square root of 324990 is about 570.0789419019. The cubic root of 324990 is about 68.7527381830.

The spelling of 324990 in words is "three hundred twenty-four thousand, nine hundred ninety".