517230 has 48 divisors (see below), whose sum is σ = 1538784. Its totient is φ = 118080.

The previous prime is 517229. The next prime is 517241. The reversal of 517230 is 32715.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 220 + ... + 1040.

It is an arithmetic number, because the mean of its divisors is an integer number (32058).

2⁵¹⁷²³⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 517230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (769392).

517230 is an abundant number, since it is smaller than the sum of its proper divisors (1021554).

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

517230 is a wasteful number, since it uses less digits than its factorization.

517230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841 (or 838 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 517230 is about 719.1870410401. The cubic root of 517230 is about 80.2714735676.

Adding to 517230 its reverse (32715), we get a palindrome (549945).

It can be divided in two parts, 517 and 230, that added together give a palindrome (747).

The spelling of 517230 in words is "five hundred seventeen thousand, two hundred thirty".