324641988 has 72 divisors (see below), whose sum is σ = 900768960. Its totient is φ = 97767360.

The previous prime is 324641983. The next prime is 324642049. The reversal of 324641988 is 889146423.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (324641983) 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, 63678 + ... + 68586.

It is an arithmetic number, because the mean of its divisors is an integer number (12510680).

Almost surely, 2^324641988 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 324641988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (450384480).

324641988 is an abundant number, since it is smaller than the sum of its proper divisors (576126972).

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

324641988 is a wasteful number, since it uses less digits than its factorization.

324641988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5097 (or 5092 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 324641988 is about 18017.8241749663. The cubic root of 324641988 is about 687.2818837775.

The spelling of 324641988 in words is "three hundred twenty-four million, six hundred forty-one thousand, nine hundred eighty-eight".