543420 has 36 divisors (see below), whose sum is σ = 1648920. Its totient is φ = 144864.

The previous prime is 543407. The next prime is 543427. The reversal of 543420 is 24345.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 543393 and 543402.

It is a congruent number.

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

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1330 + ... + 1689.

2⁵⁴³⁴²⁰ is an apocalyptic number.

It is an amenable number.

543420 is an abundant number, since it is smaller than the sum of its proper divisors (1105500).

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

543420 is a wasteful number, since it uses less digits than its factorization.

543420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3034 (or 3029 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 543420 is about 737.1702652712. The cubic root of 543420 is about 81.6040799575.

Adding to 543420 its reverse (24345), we get a palindrome (567765).

The spelling of 543420 in words is "five hundred forty-three thousand, four hundred twenty".