628266084 has 96 divisors (see below), whose sum is σ = 1583232000. Its totient is φ = 193311360.

The previous prime is 628266073. The next prime is 628266097. The reversal of 628266084 is 480662826.

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 31 ways as a sum of consecutive naturals, for example, 2767579 + ... + 2767805.

It is an arithmetic number, because the mean of its divisors is an integer number (16492000).

Almost surely, 2^628266084 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 628266084, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (791616000).

628266084 is an abundant number, since it is smaller than the sum of its proper divisors (954965916).

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

628266084 is a wasteful number, since it uses less digits than its factorization.

628266084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513 (or 511 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 42.

The square root of 628266084 is about 25065.2365638148. The cubic root of 628266084 is about 856.4746999464.

The spelling of 628266084 in words is "six hundred twenty-eight million, two hundred sixty-six thousand, eighty-four".