543426 has 16 divisors (see below), whose sum is σ = 1170624. Its totient is φ = 167184.

The previous prime is 543407. The next prime is 543427. The reversal of 543426 is 624345.

It is a nialpdrome in base 7.

It is a zygodrome in base 7.

It is a junction number, because it is equal to n+sod(n) for n = 543396 and 543405.

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

543426 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 7 ways as a sum of consecutive naturals, for example, 3406 + ... + 3561.

It is an arithmetic number, because the mean of its divisors is an integer number (73164).

2⁵⁴³⁴²⁶ is an apocalyptic number.

543426 is an abundant number, since it is smaller than the sum of its proper divisors (627198).

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

543426 is a wasteful number, since it uses less digits than its factorization.

543426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6985.

The product of its digits is 2880, while the sum is 24.

The square root of 543426 is about 737.1743348761. The cubic root of 543426 is about 81.6043802916.

It can be divided in two parts, 5434 and 26, that added together give a triangular number (5460 = T₁₀₄).

The spelling of 543426 in words is "five hundred forty-three thousand, four hundred twenty-six".