628750304 has 144 divisors (see below), whose sum is σ = 1623652128. Its totient is φ = 233865216.

The previous prime is 628750273. The next prime is 628750319. The reversal of 628750304 is 403057826.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 643064 + ... + 644040.

It is an arithmetic number, because the mean of its divisors is an integer number (11275362).

Almost surely, 2^628750304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 628750304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (811826064).

628750304 is an abundant number, since it is smaller than the sum of its proper divisors (994901824).

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

628750304 is a wasteful number, since it uses less digits than its factorization.

628750304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1037 (or 1016 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 628750304 is about 25074.8938980806. The cubic root of 628750304 is about 856.6946787579.

The spelling of 628750304 in words is "six hundred twenty-eight million, seven hundred fifty thousand, three hundred four".