516220 has 24 divisors (see below), whose sum is σ = 1106784. Its totient is φ = 202176.

The previous prime is 516209. The next prime is 516223. The reversal of 516220 is 22615.

It is a happy number.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 516194 and 516203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516223) by changing a digit.

516220 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 (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 817 + ... + 1303.

It is an arithmetic number, because the mean of its divisors is an integer number (46116).

2⁵¹⁶²²⁰ is an apocalyptic number.

It is an amenable number.

516220 is an abundant number, since it is smaller than the sum of its proper divisors (590564).

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

516220 is a wasteful number, since it uses less digits than its factorization.

516220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549 (or 547 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 516220 is about 718.4845161867. The cubic root of 516220 is about 80.2191905619.

Adding to 516220 its reverse (22615), we get a palindrome (538835).

The spelling of 516220 in words is "five hundred sixteen thousand, two hundred twenty".