516457242 has 32 divisors (see below), whose sum is σ = 1311638400. Its totient is φ = 147559104.

The previous prime is 516457231. The next prime is 516457247. The reversal of 516457242 is 242754615.

It is a happy number.

516457242 is a `hidden beast` number, since 5 + 1 + 645 + 7 + 2 + 4 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 516457197 and 516457206.

It is not an unprimeable number, because it can be changed into a prime (516457247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 682767 + ... + 683522.

It is an arithmetic number, because the mean of its divisors is an integer number (40988700).

Almost surely, 2^516457242 is an apocalyptic number.

516457242 is an abundant number, since it is smaller than the sum of its proper divisors (795181158).

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

516457242 is a wasteful number, since it uses less digits than its factorization.

516457242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366307 (or 1366301 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 516457242 is about 22725.6956329174. The cubic root of 516457242 is about 802.3147760134.

The spelling of 516457242 in words is "five hundred sixteen million, four hundred fifty-seven thousand, two hundred forty-two".