520041420 has 36 divisors (see below), whose sum is σ = 1577459520. Its totient is φ = 138677664.

The previous prime is 520041391. The next prime is 520041421. The reversal of 520041420 is 24140025.

520041420 is a `hidden beast` number, since 5 + 200 + 41 + 420 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 520041393 and 520041402.

It is not an unprimeable number, because it can be changed into a prime (520041421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1444380 + ... + 1444739.

It is an arithmetic number, because the mean of its divisors is an integer number (43818320).

Almost surely, 2^520041420 is an apocalyptic number.

It is an amenable number.

520041420 is an abundant number, since it is smaller than the sum of its proper divisors (1057418100).

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

520041420 is a wasteful number, since it uses less digits than its factorization.

520041420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2889134 (or 2889129 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 520041420 is about 22804.4166774772. The cubic root of 520041420 is about 804.1665022357.

Adding to 520041420 its reverse (24140025), we get a palindrome (544181445).

The spelling of 520041420 in words is "five hundred twenty million, forty-one thousand, four hundred twenty".