516040442 has 8 divisors (see below), whose sum is σ = 800752500. Its totient is φ = 249122944.

The previous prime is 516040417. The next prime is 516040451. The reversal of 516040442 is 244040615.

It can be written as a sum of positive squares in 2 ways, for example, as 490223881 + 25816561 = 22141^2 + 5081^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4448567 + ... + 4448682.

Almost surely, 2^516040442 is an apocalyptic number.

516040442 is a deficient number, since it is larger than the sum of its proper divisors (284712058).

516040442 is a wasteful number, since it uses less digits than its factorization.

516040442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8897280.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 516040442 is about 22716.5235456484. The cubic root of 516040442 is about 802.0988854093.

The spelling of 516040442 in words is "five hundred sixteen million, forty thousand, four hundred forty-two".