628022116 has 12 divisors (see below), whose sum is σ = 1099962220. Its totient is φ = 313747200.

The previous prime is 628022093. The next prime is 628022147. The reversal of 628022116 is 611220826.

It can be written as a sum of positive squares in 2 ways, for example, as 123121216 + 504900900 = 11096^2 + 22470^2 .

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60561 + ... + 70168.

Almost surely, 2^628022116 is an apocalyptic number.

It is an amenable number.

628022116 is a deficient number, since it is larger than the sum of its proper divisors (471940104).

628022116 is a wasteful number, since it uses less digits than its factorization.

628022116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131934 (or 131932 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 628022116 is about 25060.3694306369. The cubic root of 628022116 is about 856.3638236380.

The spelling of 628022116 in words is "six hundred twenty-eight million, twenty-two thousand, one hundred sixteen".