628886260 has 12 divisors (see below), whose sum is σ = 1320661188. Its totient is φ = 251554496.

The previous prime is 628886233. The next prime is 628886303. The reversal of 628886260 is 62688826.

628886260 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 243235216 + 385651044 = 15596^2 + 19638^2 .

It is a super-4 number, since 4×628886260⁴ (a number of 36 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 628886260.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15722137 + ... + 15722176.

It is an arithmetic number, because the mean of its divisors is an integer number (110055099).

Almost surely, 2^628886260 is an apocalyptic number.

It is an amenable number.

628886260 is an abundant number, since it is smaller than the sum of its proper divisors (691774928).

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

628886260 is a wasteful number, since it uses less digits than its factorization.

628886260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31444322 (or 31444320 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 46.

The square root of 628886260 is about 25077.6047500554. The cubic root of 628886260 is about 856.7564226049.

The spelling of 628886260 in words is "six hundred twenty-eight million, eight hundred eighty-six thousand, two hundred sixty".