628345288 has 16 divisors (see below), whose sum is σ = 1178418780. Its totient is φ = 314100288.

The previous prime is 628345261. The next prime is 628345321. The reversal of 628345288 is 882543826.

628345288 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 621903844 + 6441444 = 24938^2 + 2538^2 .

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, 52470 + ... + 63322.

Almost surely, 2^628345288 is an apocalyptic number.

It is an amenable number.

628345288 is a deficient number, since it is larger than the sum of its proper divisors (550073492).

628345288 is a wasteful number, since it uses less digits than its factorization.

628345288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18096 (or 18092 counting only the distinct ones).

The product of its digits is 737280, while the sum is 46.

The square root of 628345288 is about 25066.8164711836. The cubic root of 628345288 is about 856.5106896719.

The spelling of 628345288 in words is "six hundred twenty-eight million, three hundred forty-five thousand, two hundred eighty-eight".