628147268 has 36 divisors (see below), whose sum is σ = 1308483792. Its totient is φ = 262941840.

The previous prime is 628147259. The next prime is 628147283. The reversal of 628147268 is 862741826.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28838 + ... + 45693.

It is an arithmetic number, because the mean of its divisors is an integer number (36346772).

Almost surely, 2^628147268 is an apocalyptic number.

It is an amenable number.

628147268 is an abundant number, since it is smaller than the sum of its proper divisors (680336524).

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

628147268 is a wasteful number, since it uses less digits than its factorization.

628147268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74592 (or 74583 counting only the distinct ones).

The product of its digits is 258048, while the sum is 44.

The square root of 628147268 is about 25062.8663165249. The cubic root of 628147268 is about 856.4207051416.

The spelling of 628147268 in words is "six hundred twenty-eight million, one hundred forty-seven thousand, two hundred sixty-eight".