628173460 has 96 divisors (see below), whose sum is σ = 1457906688. Its totient is φ = 226314240.

The previous prime is 628173407. The next prime is 628173467. The reversal of 628173460 is 64371826.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628173467) by changing a digit.

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, 1127502 + ... + 1128058.

It is an arithmetic number, because the mean of its divisors is an integer number (15186528).

Almost surely, 2^628173460 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 628173460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (728953344).

628173460 is an abundant number, since it is smaller than the sum of its proper divisors (829733228).

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

628173460 is a wasteful number, since it uses less digits than its factorization.

628173460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721 (or 719 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 628173460 is about 25063.3888371066. The cubic root of 628173460 is about 856.4326084327.

The spelling of 628173460 in words is "six hundred twenty-eight million, one hundred seventy-three thousand, four hundred sixty".