628346500 has 24 divisors (see below), whose sum is σ = 1372309848. Its totient is φ = 251338400.

The previous prime is 628346489. The next prime is 628346507. The reversal of 628346500 is 5643826.

It is a happy number.

628346500 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 4 ways, for example, as 139759684 + 488586816 = 11822^2 + 22104^2 .

It is not an unprimeable number, because it can be changed into a prime (628346507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 627847 + ... + 628846.

It is an arithmetic number, because the mean of its divisors is an integer number (57179577).

Almost surely, 2^628346500 is an apocalyptic number.

It is an amenable number.

628346500 is an abundant number, since it is smaller than the sum of its proper divisors (743963348).

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

628346500 is a wasteful number, since it uses less digits than its factorization.

628346500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256712 (or 1256700 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 628346500 is about 25066.8406465594. The cubic root of 628346500 is about 856.5112403725.

The spelling of 628346500 in words is "six hundred twenty-eight million, three hundred forty-six thousand, five hundred".