543220 has 24 divisors (see below), whose sum is σ = 1154664. Its totient is φ = 214656.

The previous prime is 543217. The next prime is 543223. The reversal of 543220 is 22345.

543220 = T₂₂₃ + T₂₂₄ + ... + T₂₄₂.

It is an interprime number because it is at equal distance from previous prime (543217) and next prime (543223).

It can be written as a sum of positive squares in 4 ways, for example, as 104976 + 438244 = 324^2 + 662^2 .

It is an Ulam number.

It is a plaindrome in base 12.

It is a nialpdrome in base 10.

It is a zygodrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 543194 and 543203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (543223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3054 + ... + 3226.

It is an arithmetic number, because the mean of its divisors is an integer number (48111).

2⁵⁴³²²⁰ is an apocalyptic number.

It is an amenable number.

543220 is an abundant number, since it is smaller than the sum of its proper divisors (611444).

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

543220 is a wasteful number, since it uses less digits than its factorization.

543220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339 (or 337 counting only the distinct ones).

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

The square root of 543220 is about 737.0345989165. The cubic root of 543220 is about 81.5940675554.

Adding to 543220 its reverse (22345), we get a palindrome (565565).

The spelling of 543220 in words is "five hundred forty-three thousand, two hundred twenty".