517905342 has 12 divisors (see below), whose sum is σ = 1122128280. Its totient is φ = 172635108.

The previous prime is 517905331. The next prime is 517905343. The reversal of 517905342 is 243509715.

517905342 is a `hidden beast` number, since 51 + 79 + 0 + 534 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 517905297 and 517905306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (517905343) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14386242 + ... + 14386277.

It is an arithmetic number, because the mean of its divisors is an integer number (93510690).

Almost surely, 2^517905342 is an apocalyptic number.

517905342 is an abundant number, since it is smaller than the sum of its proper divisors (604222938).

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

517905342 is a wasteful number, since it uses less digits than its factorization.

517905342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28772527 (or 28772524 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 517905342 is about 22757.5337415986. The cubic root of 517905342 is about 803.0639492460.

The spelling of 517905342 in words is "five hundred seventeen million, nine hundred five thousand, three hundred forty-two".