520429 has 24 divisors (see below), whose sum is σ = 702240. Its totient is φ = 381024.

The previous prime is 520427. The next prime is 520433. The reversal of 520429 is 924025.

It is a happy number.

It is not a de Polignac number, because 520429 - 2¹ = 520427 is a prime.

520429 is a modest number, since divided by 429 gives 52 as remainder.

520429 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520423) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 12082 + ... + 12124.

It is an arithmetic number, because the mean of its divisors is an integer number (29260).

2⁵²⁰⁴²⁹ is an apocalyptic number.

It is an amenable number.

520429 is a deficient number, since it is larger than the sum of its proper divisors (181811).

520429 is a wasteful number, since it uses less digits than its factorization.

520429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89 (or 82 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 520429 is about 721.4076517476. The cubic root of 520429 is about 80.4366230849.

It can be divided in two parts, 520 and 429, that added together give a palindrome (949).

The spelling of 520429 in words is "five hundred twenty thousand, four hundred twenty-nine".