517630742 has 8 divisors (see below), whose sum is σ = 776590416. Its totient is φ = 258767272.

The previous prime is 517630717. The next prime is 517630753. The reversal of 517630742 is 247036715.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8618 + ... + 33309.

It is an arithmetic number, because the mean of its divisors is an integer number (97073802).

Almost surely, 2^517630742 is an apocalyptic number.

517630742 is a deficient number, since it is larger than the sum of its proper divisors (258959674).

517630742 is a wasteful number, since it uses less digits than its factorization.

517630742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48102.

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 517630742 is about 22751.4997747401. The cubic root of 517630742 is about 802.9219925804.

The spelling of 517630742 in words is "five hundred seventeen million, six hundred thirty thousand, seven hundred forty-two".