516432242 has 4 divisors (see below), whose sum is σ = 774648366. Its totient is φ = 258216120.

The previous prime is 516432227. The next prime is 516432253. The reversal of 516432242 is 242234615.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 271227961 + 245204281 = 16469^2 + 15659^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 129108059 + ... + 129108062.

Almost surely, 2^516432242 is an apocalyptic number.

516432242 is a deficient number, since it is larger than the sum of its proper divisors (258216124).

516432242 is a wasteful number, since it uses less digits than its factorization.

516432242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258216123.

The product of its digits is 11520, while the sum is 29.

The square root of 516432242 is about 22725.1455880925. The cubic root of 516432242 is about 802.3018299962.

Adding to 516432242 its reverse (242234615), we get a palindrome (758666857).

The spelling of 516432242 in words is "five hundred sixteen million, four hundred thirty-two thousand, two hundred forty-two".