628205748 has 48 divisors (see below), whose sum is σ = 1502645760. Its totient is φ = 204158304.

The previous prime is 628205741. The next prime is 628205803. The reversal of 628205748 is 847502826.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628205741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 498343 + ... + 499601.

It is an arithmetic number, because the mean of its divisors is an integer number (31305120).

Almost surely, 2^628205748 is an apocalyptic number.

It is an amenable number.

628205748 is an abundant number, since it is smaller than the sum of its proper divisors (874440012).

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

628205748 is a wasteful number, since it uses less digits than its factorization.

628205748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2276 (or 2274 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 628205748 is about 25064.0329556119. The cubic root of 628205748 is about 856.4472816740.

The spelling of 628205748 in words is "six hundred twenty-eight million, two hundred five thousand, seven hundred forty-eight".