520412243 has 16 divisors (see below), whose sum is σ = 565439616. Its totient is φ = 476123520.

The previous prime is 520412231. The next prime is 520412251. The reversal of 520412243 is 342214025.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 520412243 - 2⁴ = 520412227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520412443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1207238 + ... + 1207668.

It is an arithmetic number, because the mean of its divisors is an integer number (35339976).

Almost surely, 2^520412243 is an apocalyptic number.

520412243 is a deficient number, since it is larger than the sum of its proper divisors (45027373).

520412243 is a wasteful number, since it uses less digits than its factorization.

520412243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 520412243 is about 22812.5457369405. The cubic root of 520412243 is about 804.3575976446.

Adding to 520412243 its reverse (342214025), we get a palindrome (862626268).

The spelling of 520412243 in words is "five hundred twenty million, four hundred twelve thousand, two hundred forty-three".