628276608 has 128 divisors (see below), whose sum is σ = 1872720000. Its totient is φ = 207346176.

The previous prime is 628276603. The next prime is 628276609. The reversal of 628276608 is 806672826.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628276601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 368943 + ... + 370641.

It is an arithmetic number, because the mean of its divisors is an integer number (14630625).

Almost surely, 2^628276608 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 628276608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (936360000).

628276608 is an abundant number, since it is smaller than the sum of its proper divisors (1244443392).

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

628276608 is a wasteful number, since it uses less digits than its factorization.

628276608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1829 (or 1811 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 628276608 is about 25065.4464951255. The cubic root of 628276608 is about 856.4794821502.

The spelling of 628276608 in words is "six hundred twenty-eight million, two hundred seventy-six thousand, six hundred eight".