628325242 has 16 divisors (see below), whose sum is σ = 952914600. Its totient is φ = 310694400.

The previous prime is 628325213. The next prime is 628325249. The reversal of 628325242 is 242523826.

It can be written as a sum of positive squares in 4 ways, for example, as 627552601 + 772641 = 25051^2 + 879^2 .

It is a junction number, because it is equal to n+sod(n) for n = 628325198 and 628325207.

It is not an unprimeable number, because it can be changed into a prime (628325249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299734 + ... + 301822.

Almost surely, 2^628325242 is an apocalyptic number.

628325242 is a deficient number, since it is larger than the sum of its proper divisors (324589358).

628325242 is a wasteful number, since it uses less digits than its factorization.

628325242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3681.

The product of its digits is 46080, while the sum is 34.

The square root of 628325242 is about 25066.4166166606. The cubic root of 628325242 is about 856.5015812002.

The spelling of 628325242 in words is "six hundred twenty-eight million, three hundred twenty-five thousand, two hundred forty-two".