628818282 has 16 divisors (see below), whose sum is σ = 1397374080. Its totient is φ = 209606076.

The previous prime is 628818269. The next prime is 628818301. The reversal of 628818282 is 282818826.

628818282 is a `hidden beast` number, since 628 + 8 + 18 + 2 + 8 + 2 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5822338 + ... + 5822445.

It is an arithmetic number, because the mean of its divisors is an integer number (87335880).

Almost surely, 2^628818282 is an apocalyptic number.

628818282 is an abundant number, since it is smaller than the sum of its proper divisors (768555798).

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

628818282 is a wasteful number, since it uses less digits than its factorization.

628818282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11644794 (or 11644788 counting only the distinct ones).

The product of its digits is 196608, while the sum is 45.

The square root of 628818282 is about 25076.2493606999. The cubic root of 628818282 is about 856.7255517938.

The spelling of 628818282 in words is "six hundred twenty-eight million, eight hundred eighteen thousand, two hundred eighty-two".