543532320 has 144 divisors (see below), whose sum is σ = 1935565632. Its totient is φ = 138631680.

The previous prime is 543532309. The next prime is 543532337. The reversal of 543532320 is 23235345.

543532320 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (144).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24915 + ... + 41325.

It is an arithmetic number, because the mean of its divisors is an integer number (13441428).

Almost surely, 2^543532320 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 543532320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (967782816).

543532320 is an abundant number, since it is smaller than the sum of its proper divisors (1392033312).

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

543532320 is a wasteful number, since it uses less digits than its factorization.

543532320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16455 (or 16444 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 27.

The square root of 543532320 is about 23313.7796163556. The cubic root of 543532320 is about 816.0970184530.

Adding to 543532320 its reverse (23235345), we get a palindrome (566767665).

The spelling of 543532320 in words is "five hundred forty-three million, five hundred thirty-two thousand, three hundred twenty".