516426242 has 16 divisors (see below), whose sum is σ = 814984632. Its totient is φ = 245105280.

The previous prime is 516426139. The next prime is 516426247. The reversal of 516426242 is 242624615.

It can be written as a sum of positive squares in 4 ways, for example, as 317588041 + 198838201 = 17821^2 + 14101^2 .

It is a junction number, because it is equal to n+sod(n) for n = 516426199 and 516426208.

It is not an unprimeable number, because it can be changed into a prime (516426247) 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, 82073 + ... + 88140.

Almost surely, 2^516426242 is an apocalyptic number.

516426242 is a deficient number, since it is larger than the sum of its proper divisors (298558390).

516426242 is a wasteful number, since it uses less digits than its factorization.

516426242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170293.

The product of its digits is 23040, while the sum is 32.

The square root of 516426242 is about 22725.0135753535. The cubic root of 516426242 is about 802.2987228899.

The spelling of 516426242 in words is "five hundred sixteen million, four hundred twenty-six thousand, two hundred forty-two".