628828046 has 48 divisors (see below), whose sum is σ = 1190807520. Its totient is φ = 243777600.

The previous prime is 628828007. The next prime is 628828063. The reversal of 628828046 is 640828826.

It is a super-2 number, since 2×628828046² = 790849422872356232, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 628827988 and 628828006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 387116 + ... + 388736.

It is an arithmetic number, because the mean of its divisors is an integer number (24808490).

Almost surely, 2^628828046 is an apocalyptic number.

628828046 is a deficient number, since it is larger than the sum of its proper divisors (561979474).

628828046 is a wasteful number, since it uses less digits than its factorization.

628828046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1881 (or 1870 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 44.

The square root of 628828046 is about 25076.4440461561. Note that the first 3 decimals coincide. The cubic root of 628828046 is about 856.7299860505.

The spelling of 628828046 in words is "six hundred twenty-eight million, eight hundred twenty-eight thousand, forty-six".