520820470 has 8 divisors (see below), whose sum is σ = 937476864. Its totient is φ = 208328184.

The previous prime is 520820437. The next prime is 520820513. The reversal of 520820470 is 74028025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26041014 + ... + 26041033.

It is an arithmetic number, because the mean of its divisors is an integer number (117184608).

Almost surely, 2^520820470 is an apocalyptic number.

520820470 is a deficient number, since it is larger than the sum of its proper divisors (416656394).

520820470 is a wasteful number, since it uses less digits than its factorization.

520820470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52082054.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 520820470 is about 22821.4914061286. The cubic root of 520820470 is about 804.5678634305.

Adding to 520820470 its reverse (74028025), we get a palindrome (594848495).

The spelling of 520820470 in words is "five hundred twenty million, eight hundred twenty thousand, four hundred seventy".