520195228 has 12 divisors (see below), whose sum is σ = 1040390512. Its totient is φ = 222940800.

The previous prime is 520195219. The next prime is 520195237. The reversal of 520195228 is 822591025.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (520195219) and next prime (520195237).

520195228 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 520195193 and 520195202.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 9289173 + ... + 9289228.

Almost surely, 2^520195228 is an apocalyptic number.

It is an amenable number.

520195228 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

520195228 is a wasteful number, since it uses less digits than its factorization.

520195228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18578412 (or 18578410 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 520195228 is about 22807.7887573522. The cubic root of 520195228 is about 804.2457747991.

The spelling of 520195228 in words is "five hundred twenty million, one hundred ninety-five thousand, two hundred twenty-eight".