516642 has 16 divisors (see below), whose sum is σ = 1180992. Its totient is φ = 147600.

The previous prime is 516623. The next prime is 516643. The reversal of 516642 is 246615.

It is not an unprimeable number, because it can be changed into a prime (516643) by changing a digit.

516642 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6109 + ... + 6192.

It is an arithmetic number, because the mean of its divisors is an integer number (73812).

2⁵¹⁶⁶⁴² is an apocalyptic number.

516642 is an abundant number, since it is smaller than the sum of its proper divisors (664350).

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

516642 is a wasteful number, since it uses less digits than its factorization.

516642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12313.

The product of its digits is 1440, while the sum is 24.

The square root of 516642 is about 718.7781298843. The cubic root of 516642 is about 80.2410438273.

The spelling of 516642 in words is "five hundred sixteen thousand, six hundred forty-two".