324281984 has 64 divisors (see below), whose sum is σ = 709044840. Its totient is φ = 146804736.

The previous prime is 324281981. The next prime is 324281989. The reversal of 324281984 is 489182423.

It can be written as a sum of positive squares in 4 ways, for example, as 293368384 + 30913600 = 17128^2 + 5560^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (324281981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86354 + ... + 90030.

Almost surely, 2^324281984 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 324281984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (354522420).

324281984 is an abundant number, since it is smaller than the sum of its proper divisors (384762856).

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

324281984 is a wasteful number, since it uses less digits than its factorization.

324281984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3757 (or 3745 counting only the distinct ones).

The product of its digits is 110592, while the sum is 41.

The square root of 324281984 is about 18007.8311853482. The cubic root of 324281984 is about 687.0277415211.

The spelling of 324281984 in words is "three hundred twenty-four million, two hundred eighty-one thousand, nine hundred eighty-four".