516444 has 12 divisors (see below), whose sum is σ = 1205064. Its totient is φ = 172144.

The previous prime is 516437. The next prime is 516449. The reversal of 516444 is 444615.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516449) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 21507 + ... + 21530.

It is an arithmetic number, because the mean of its divisors is an integer number (100422).

2⁵¹⁶⁴⁴⁴ is an apocalyptic number.

It is an amenable number.

516444 is an abundant number, since it is smaller than the sum of its proper divisors (688620).

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

516444 is a wasteful number, since it uses less digits than its factorization.

516444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43044 (or 43042 counting only the distinct ones).

The product of its digits is 1920, while the sum is 24.

The square root of 516444 is about 718.6403829455. The cubic root of 516444 is about 80.2307918819.

The spelling of 516444 in words is "five hundred sixteen thousand, four hundred forty-four".