517930146 has 48 divisors (see below), whose sum is σ = 1203239520. Its totient is φ = 165128040.

The previous prime is 517930129. The next prime is 517930157. The reversal of 517930146 is 641039715.

It is a super-2 number, since 2×517930146² = 536503272271162632, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 517930146.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19501 + ... + 37631.

It is an arithmetic number, because the mean of its divisors is an integer number (25067490).

Almost surely, 2^517930146 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 517930146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (601619760).

517930146 is an abundant number, since it is smaller than the sum of its proper divisors (685309374).

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

517930146 is a wasteful number, since it uses less digits than its factorization.

517930146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18188 (or 18159 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 517930146 is about 22758.0786974648. The cubic root of 517930146 is about 803.0767694010.

The spelling of 517930146 in words is "five hundred seventeen million, nine hundred thirty thousand, one hundred forty-six".