324541728 has 240 divisors, whose sum is σ = 1127960064. Its totient is φ = 89579520.

The previous prime is 324541709. The next prime is 324541729. The reversal of 324541728 is 827145423.

It is a happy number.

324541728 is a `hidden beast` number, since 32 + 454 + 172 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 324541692 and 324541701.

It is not an unprimeable number, because it can be changed into a prime (324541729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 562176 + ... + 562752.

Almost surely, 2^324541728 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 324541728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (563980032).

324541728 is an abundant number, since it is smaller than the sum of its proper divisors (803418336).

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

324541728 is a wasteful number, since it uses less digits than its factorization.

324541728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637 (or 620 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 324541728 is about 18015.0417151890. The cubic root of 324541728 is about 687.2111248297.

The spelling of 324541728 in words is "three hundred twenty-four million, five hundred forty-one thousand, seven hundred twenty-eight".