520838770 has 16 divisors (see below), whose sum is σ = 941162328. Its totient is φ = 207523840.

The previous prime is 520838743. The next prime is 520838779. The reversal of 520838770 is 77838025.

It can be written as a sum of positive squares in 4 ways, for example, as 520250481 + 588289 = 22809^2 + 767^2 .

It is a super-2 number, since 2×520838770² = 542546048670225800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (520838779) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 98761 + ... + 103900.

Almost surely, 2^520838770 is an apocalyptic number.

520838770 is a deficient number, since it is larger than the sum of its proper divisors (420323558).

520838770 is a wasteful number, since it uses less digits than its factorization.

520838770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202925.

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 520838770 is about 22821.8923404699. The cubic root of 520838770 is about 804.5772866517.

The spelling of 520838770 in words is "five hundred twenty million, eight hundred thirty-eight thousand, seven hundred seventy".