516042 has 12 divisors (see below), whose sum is σ = 1118130. Its totient is φ = 172008.

The previous prime is 516023. The next prime is 516049. The reversal of 516042 is 240615.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 370881 + 145161 = 609^2 + 381^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 28669 = 516042 / (5 + 1 + 6 + 0 + 4 + 2).

It is not an unprimeable number, because it can be changed into a prime (516049) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14317 + ... + 14352.

2⁵¹⁶⁰⁴² is an apocalyptic number.

516042 is an abundant number, since it is smaller than the sum of its proper divisors (602088).

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

516042 is a wasteful number, since it uses less digits than its factorization.

516042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28677 (or 28674 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 516042 is about 718.3606336653. The cubic root of 516042 is about 80.2099692626.

Adding to 516042 its reverse (240615), we get a palindrome (756657).

The spelling of 516042 in words is "five hundred sixteen thousand, forty-two".