628862528 has 56 divisors (see below), whose sum is σ = 1472208384. Its totient is φ = 260812800.

The previous prime is 628862503. The next prime is 628862539. The reversal of 628862528 is 825268826.

It is a happy number.

628862528 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (56).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8753 + ... + 36528.

Almost surely, 2^628862528 is an apocalyptic number.

It is an amenable number.

628862528 is an abundant number, since it is smaller than the sum of its proper divisors (843345856).

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

628862528 is a wasteful number, since it uses less digits than its factorization.

628862528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45331 (or 45321 counting only the distinct ones).

The product of its digits is 737280, while the sum is 47.

The square root of 628862528 is about 25077.1315744046. The cubic root of 628862528 is about 856.7456454578.

The spelling of 628862528 in words is "six hundred twenty-eight million, eight hundred sixty-two thousand, five hundred twenty-eight".