520065340 has 96 divisors (see below), whose sum is σ = 1207342080. Its totient is φ = 187432704.

The previous prime is 520065317. The next prime is 520065373. The reversal of 520065340 is 43560025.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 660427 + ... + 661213.

It is an arithmetic number, because the mean of its divisors is an integer number (12576480).

Almost surely, 2^520065340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520065340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (603671040).

520065340 is an abundant number, since it is smaller than the sum of its proper divisors (687276740).

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

520065340 is a wasteful number, since it uses less digits than its factorization.

520065340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899 (or 897 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 520065340 is about 22804.9411312549. The cubic root of 520065340 is about 804.1788316176.

The spelling of 520065340 in words is "five hundred twenty million, sixty-five thousand, three hundred forty".