543040 has 28 divisors (see below), whose sum is σ = 1293876. Its totient is φ = 217088.

The previous prime is 543029. The next prime is 543061. The reversal of 543040 is 40345.

It can be written as a sum of positive squares in 2 ways, for example, as 389376 + 153664 = 624^2 + 392^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 529 + ... + 1168.

2⁵⁴³⁰⁴⁰ is an apocalyptic number.

It is an amenable number.

543040 is an abundant number, since it is smaller than the sum of its proper divisors (750836).

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

543040 is a wasteful number, since it uses less digits than its factorization.

543040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1714 (or 1704 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 543040 is about 736.9124778425. The cubic root of 543040 is about 81.5850542921.

Adding to 543040 its reverse (40345), we get a palindrome (583385).

The spelling of 543040 in words is "five hundred forty-three thousand, forty".