520662240 has 432 divisors, whose sum is σ = 2124263232. Its totient is φ = 115734528.

The previous prime is 520662229. The next prime is 520662257. The reversal of 520662240 is 42266025.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3316242 + ... + 3316398.

It is an arithmetic number, because the mean of its divisors is an integer number (4917276).

Almost surely, 2^520662240 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 520662240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1062131616).

520662240 is an abundant number, since it is smaller than the sum of its proper divisors (1603600992).

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

520662240 is a wasteful number, since it uses less digits than its factorization.

520662240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 520662240 is about 22818.0244543650. The cubic root of 520662240 is about 804.4863768308.

The spelling of 520662240 in words is "five hundred twenty million, six hundred sixty-two thousand, two hundred forty".