543424 has 28 divisors (see below), whose sum is σ = 1233424. Its totient is φ = 232704.

The previous prime is 543407. The next prime is 543427. The reversal of 543424 is 424345.

543424 = T₉₇ + T₉₈ + ... + T₁₆₀.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (28).

It is a nialpdrome in base 7.

It is a junction number, because it is equal to n+sod(n) for n = 543395 and 543404.

It is not an unprimeable number, because it can be changed into a prime (543427) by changing a digit.

543424 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159 + ... + 1054.

2⁵⁴³⁴²⁴ is an apocalyptic number.

It is an amenable number.

543424 is an abundant number, since it is smaller than the sum of its proper divisors (690000).

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

543424 is a wasteful number, since it uses less digits than its factorization.

543424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232 (or 1222 counting only the distinct ones).

The product of its digits is 1920, while the sum is 22.

The square root of 543424 is about 737.1729783436. The cubic root of 543424 is about 81.6042801805.

Adding to 543424 its reverse (424345), we get a palindrome (967769).

The spelling of 543424 in words is "five hundred forty-three thousand, four hundred twenty-four".