543630 has 16 divisors (see below), whose sum is σ = 1304784. Its totient is φ = 144960.

The previous prime is 543617. The next prime is 543637. The reversal of 543630 is 36345.

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 = 543597 and 543606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (543637) by changing a digit.

543630 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 7 ways as a sum of consecutive naturals, for example, 9031 + ... + 9090.

It is an arithmetic number, because the mean of its divisors is an integer number (81549).

2⁵⁴³⁶³⁰ is an apocalyptic number.

543630 is an abundant number, since it is smaller than the sum of its proper divisors (761154).

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

543630 is a wasteful number, since it uses less digits than its factorization.

543630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18131.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 543630 is about 737.3126880775. The cubic root of 543630 is about 81.6145903361.

Adding to 543630 its reverse (36345), we get a palindrome (579975).

The spelling of 543630 in words is "five hundred forty-three thousand, six hundred thirty".