517342405 has 8 divisors (see below), whose sum is σ = 620983584. Its totient is φ = 413758800.

The previous prime is 517342391. The next prime is 517342429. The reversal of 517342405 is 504243715.

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

It is not a de Polignac number, because 517342405 - 2⁹ = 517341893 is a prime.

It is a super-2 number, since 2×517342405² = 535286328022368050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8770 + ... + 33340.

It is an arithmetic number, because the mean of its divisors is an integer number (77622948).

Almost surely, 2^517342405 is an apocalyptic number.

It is an amenable number.

517342405 is a deficient number, since it is larger than the sum of its proper divisors (103641179).

517342405 is a wasteful number, since it uses less digits than its factorization.

517342405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28787.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 517342405 is about 22745.1622328793. The cubic root of 517342405 is about 802.7728804176.

The spelling of 517342405 in words is "five hundred seventeen million, three hundred forty-two thousand, four hundred five".