517742112 has 24 divisors (see below), whose sum is σ = 1359073296. Its totient is φ = 172580672.

The previous prime is 517742111. The next prime is 517742143. The reversal of 517742112 is 211247715.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 517742112.

It is not an unprimeable number, because it can be changed into a prime (517742111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2696478 + ... + 2696669.

It is an arithmetic number, because the mean of its divisors is an integer number (56628054).

Almost surely, 2^517742112 is an apocalyptic number.

It is an amenable number.

517742112 is an abundant number, since it is smaller than the sum of its proper divisors (841331184).

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

517742112 is a wasteful number, since it uses less digits than its factorization.

517742112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5393160 (or 5393152 counting only the distinct ones).

The product of its digits is 3920, while the sum is 30.

The square root of 517742112 is about 22753.9471740619. The cubic root of 517742112 is about 802.9795722427.

Adding to 517742112 its reverse (211247715), we get a palindrome (728989827).

The spelling of 517742112 in words is "five hundred seventeen million, seven hundred forty-two thousand, one hundred twelve".