543432 has 16 divisors (see below), whose sum is σ = 1358640. Its totient is φ = 181136.

The previous prime is 543427. The next prime is 543463. The reversal of 543432 is 234345.

543432 = T₃₄₃ + T₃₄₄ + ... + T₃₅₁.

It is a happy number.

543432 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 543399 and 543408.

It is an unprimeable number.

543432 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11298 + ... + 11345.

It is an arithmetic number, because the mean of its divisors is an integer number (84915).

2⁵⁴³⁴³² is an apocalyptic number.

It is an amenable number.

543432 is an abundant number, since it is smaller than the sum of its proper divisors (815208).

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

543432 is a wasteful number, since it uses less digits than its factorization.

543432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22652 (or 22648 counting only the distinct ones).

The product of its digits is 1440, while the sum is 21.

The square root of 543432 is about 737.1784044585. The cubic root of 543432 is about 81.6046806235.

Adding to 543432 its reverse (234345), we get a palindrome (777777).

It can be divided in two parts, 54343 and 2, that added together give a palindrome (54345).

The spelling of 543432 in words is "five hundred forty-three thousand, four hundred thirty-two".