516428 has 24 divisors (see below), whose sum is σ = 1004304. Its totient is φ = 232320.

The previous prime is 516421. The next prime is 516431. The reversal of 516428 is 824615.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 516397 and 516406.

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 in 7 ways as a sum of consecutive naturals, for example, 5276 + ... + 5372.

It is an arithmetic number, because the mean of its divisors is an integer number (41846).

2⁵¹⁶⁴²⁸ is an apocalyptic number.

It is an amenable number.

516428 is a deficient number, since it is larger than the sum of its proper divisors (487876).

516428 is a wasteful number, since it uses less digits than its factorization.

516428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 110 counting only the distinct ones).

The product of its digits is 1920, while the sum is 26.

The square root of 516428 is about 718.6292507267. The cubic root of 516428 is about 80.2299633275.

The spelling of 516428 in words is "five hundred sixteen thousand, four hundred twenty-eight".