628000320 has 56 divisors (see below), whose sum is σ = 1993904064. Its totient is φ = 167466496.

The previous prime is 628000319. The next prime is 628000357. The reversal of 628000320 is 23000826.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 326124 + ... + 328043.

Almost surely, 2^628000320 is an apocalyptic number.

628000320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

628000320 is an abundant number, since it is smaller than the sum of its proper divisors (1365903744).

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

628000320 is a wasteful number, since it uses less digits than its factorization.

628000320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654187 (or 654177 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 628000320 is about 25059.9345569776. The cubic root of 628000320 is about 856.3539165974.

The spelling of 628000320 in words is "six hundred twenty-eight million, three hundred twenty", and thus it is an aban number.