628300052 has 12 divisors (see below), whose sum is σ = 1101934260. Its totient is φ = 313461696.

The previous prime is 628300009. The next prime is 628300067. The reversal of 628300052 is 250003826.

It can be written as a sum of positive squares in 2 ways, for example, as 461218576 + 167081476 = 21476^2 + 12926^2 .

It is a junction number, because it is equal to n+sod(n) for n = 628299994 and 628300030.

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, 170027 + ... + 173682.

It is an arithmetic number, because the mean of its divisors is an integer number (91827855).

Almost surely, 2^628300052 is an apocalyptic number.

It is an amenable number.

628300052 is a deficient number, since it is larger than the sum of its proper divisors (473634208).

628300052 is a wasteful number, since it uses less digits than its factorization.

628300052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344170 (or 344168 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 628300052 is about 25065.9141465058. The cubic root of 628300052 is about 856.4901351307.

Adding to 628300052 its reverse (250003826), we get a palindrome (878303878).

The spelling of 628300052 in words is "six hundred twenty-eight million, three hundred thousand, fifty-two".