520949846 has 16 divisors (see below), whose sum is σ = 787208544. Its totient is φ = 258553344.

The previous prime is 520949843. The next prime is 520949893. The reversal of 520949846 is 648949025.

It is a self number, because there is not a number n which added to its sum of digits gives 520949846.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520949843) 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 7 ways as a sum of consecutive naturals, for example, 213791 + ... + 216213.

It is an arithmetic number, because the mean of its divisors is an integer number (49200534).

Almost surely, 2^520949846 is an apocalyptic number.

520949846 is a deficient number, since it is larger than the sum of its proper divisors (266258698).

520949846 is a wasteful number, since it uses less digits than its factorization.

520949846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3175.

The product of its (nonzero) digits is 622080, while the sum is 47.

The square root of 520949846 is about 22824.3257512681. The cubic root of 520949846 is about 804.6344782943.

It can be divided in two parts, 5209 and 49846, that added together give a palindrome (55055).

The spelling of 520949846 in words is "five hundred twenty million, nine hundred forty-nine thousand, eight hundred forty-six".