516424 has 8 divisors (see below), whose sum is σ = 968310. Its totient is φ = 258208.

The previous prime is 516421. The next prime is 516431. The reversal of 516424 is 424615.

It can be written as a sum of positive squares in only one way, i.e., 515524 + 900 = 718^2 + 30^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 516395 and 516404.

It is not an unprimeable number, because it can be changed into a prime (516421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32269 + ... + 32284.

2⁵¹⁶⁴²⁴ is an apocalyptic number.

It is an amenable number.

516424 is a deficient number, since it is larger than the sum of its proper divisors (451886).

516424 is a wasteful number, since it uses less digits than its factorization.

516424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64559 (or 64555 counting only the distinct ones).

The product of its digits is 960, while the sum is 22.

The square root of 516424 is about 718.6264676450. The cubic root of 516424 is about 80.2297561862.

Subtracting from 516424 its reverse (424615), we obtain a square (91809 = 303²).

The spelling of 516424 in words is "five hundred sixteen thousand, four hundred twenty-four".