628115312 has 20 divisors (see below), whose sum is σ = 1327607736. Its totient is φ = 285506880.

The previous prime is 628115297. The next prime is 628115329. The reversal of 628115312 is 213511826.

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 3 ways as a sum of consecutive naturals, for example, 1784243 + ... + 1784594.

Almost surely, 2^628115312 is an apocalyptic number.

It is an amenable number.

628115312 is an abundant number, since it is smaller than the sum of its proper divisors (699492424).

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

628115312 is a wasteful number, since it uses less digits than its factorization.

628115312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3568856 (or 3568850 counting only the distinct ones).

The product of its digits is 2880, while the sum is 29.

The square root of 628115312 is about 25062.2287915500. The cubic root of 628115312 is about 856.4061818785.

The spelling of 628115312 in words is "six hundred twenty-eight million, one hundred fifteen thousand, three hundred twelve".