517273230 has 64 divisors (see below), whose sum is σ = 1275740928. Its totient is φ = 134158080.

The previous prime is 517273219. The next prime is 517273231. The reversal of 517273230 is 32372715.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (517273231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 361777 + ... + 363203.

It is an arithmetic number, because the mean of its divisors is an integer number (19933452).

Almost surely, 2^517273230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 517273230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (637870464).

517273230 is an abundant number, since it is smaller than the sum of its proper divisors (758467698).

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

517273230 is a wasteful number, since it uses less digits than its factorization.

517273230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1761.

The product of its (nonzero) digits is 8820, while the sum is 30.

The square root of 517273230 is about 22743.6415290076. The cubic root of 517273230 is about 802.7370986421.

The spelling of 517273230 in words is "five hundred seventeen million, two hundred seventy-three thousand, two hundred thirty".