628705350 has 216 divisors, whose sum is σ = 2092111632. Its totient is φ = 132537600.

The previous prime is 628705349. The next prime is 628705367. The reversal of 628705350 is 53507826.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 531760 + ... + 532940.

It is an arithmetic number, because the mean of its divisors is an integer number (9685702).

Almost surely, 2^628705350 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 628705350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1046055816).

628705350 is an abundant number, since it is smaller than the sum of its proper divisors (1463406282).

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

628705350 is a wasteful number, since it uses less digits than its factorization.

628705350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1232 (or 1211 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 628705350 is about 25073.9974874371. The cubic root of 628705350 is about 856.6742611293.

The spelling of 628705350 in words is "six hundred twenty-eight million, seven hundred five thousand, three hundred fifty".