628308045 has 24 divisors (see below), whose sum is σ = 1114397856. Its totient is φ = 327303648.

The previous prime is 628308041. The next prime is 628308059. The reversal of 628308045 is 540803826.

628308045 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 628308045 - 2² = 628308041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628308041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 160419 + ... + 164288.

It is an arithmetic number, because the mean of its divisors is an integer number (46433244).

Almost surely, 2^628308045 is an apocalyptic number.

It is an amenable number.

628308045 is a deficient number, since it is larger than the sum of its proper divisors (486089811).

628308045 is a wasteful number, since it uses less digits than its factorization.

628308045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324761 (or 324758 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 628308045 is about 25066.0735856257. The cubic root of 628308045 is about 856.4937670984.

The spelling of 628308045 in words is "six hundred twenty-eight million, three hundred eight thousand, forty-five".