628326560 has 48 divisors (see below), whose sum is σ = 1493936136. Its totient is φ = 249719808.

The previous prime is 628326547. The next prime is 628326571. The reversal of 628326560 is 65623826.

It can be written as a sum of positive squares in 4 ways, for example, as 597900304 + 30426256 = 24452^2 + 5516^2 .

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 7 ways as a sum of consecutive naturals, for example, 12614 + ... + 37626.

Almost surely, 2^628326560 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 628326560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (746968068).

628326560 is an abundant number, since it is smaller than the sum of its proper divisors (865609576).

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

628326560 is a wasteful number, since it uses less digits than its factorization.

628326560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25185 (or 25177 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 628326560 is about 25066.4429068027. The cubic root of 628326560 is about 856.5021800770.

The spelling of 628326560 in words is "six hundred twenty-eight million, three hundred twenty-six thousand, five hundred sixty".