628343205 has 128 divisors (see below), whose sum is σ = 1300561920. Its totient is φ = 252149760.

The previous prime is 628343201. The next prime is 628343207. The reversal of 628343205 is 502343826.

It is a happy number.

628343205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 628343205 - 2² = 628343201 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628343201) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3289660 + ... + 3289850.

It is an arithmetic number, because the mean of its divisors is an integer number (10160640).

Almost surely, 2^628343205 is an apocalyptic number.

It is an amenable number.

628343205 is an abundant number, since it is smaller than the sum of its proper divisors (672218715).

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

628343205 is a wasteful number, since it uses less digits than its factorization.

628343205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339.

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 628343205 is about 25066.7749221953. The cubic root of 628343205 is about 856.5097432105.

The spelling of 628343205 in words is "six hundred twenty-eight million, three hundred forty-three thousand, two hundred five".