520198538 has 32 divisors (see below), whose sum is σ = 871077888. Its totient is φ = 231840000.

The previous prime is 520198531. The next prime is 520198541. The reversal of 520198538 is 835891025.

It is a junction number, because it is equal to n+sod(n) for n = 520198495 and 520198504.

It is not an unprimeable number, because it can be changed into a prime (520198531) 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 15 ways as a sum of consecutive naturals, for example, 44288 + ... + 54788.

It is an arithmetic number, because the mean of its divisors is an integer number (27221184).

Almost surely, 2^520198538 is an apocalyptic number.

520198538 is a deficient number, since it is larger than the sum of its proper divisors (350879350).

520198538 is a wasteful number, since it uses less digits than its factorization.

520198538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10598.

The product of its (nonzero) digits is 86400, while the sum is 41.

The square root of 520198538 is about 22807.8613201677. The cubic root of 520198538 is about 804.2474805997.

The spelling of 520198538 in words is "five hundred twenty million, one hundred ninety-eight thousand, five hundred thirty-eight".