628580320 has 48 divisors (see below), whose sum is σ = 1488186000. Its totient is φ = 250896384.

The previous prime is 628580299. The next prime is 628580339. The reversal of 628580320 is 23085826.

It is a super-2 number, since 2×628580320² = 790226437382604800, which contains 22 as substring.

It is a congruent number.

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, 75904 + ... + 83776.

It is an arithmetic number, because the mean of its divisors is an integer number (31003875).

Almost surely, 2^628580320 is an apocalyptic number.

It is an amenable number.

628580320 is an abundant number, since it is smaller than the sum of its proper divisors (859605680).

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

628580320 is a wasteful number, since it uses less digits than its factorization.

628580320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8387 (or 8379 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 628580320 is about 25071.5041431502. The cubic root of 628580320 is about 856.6174687151.

The spelling of 628580320 in words is "six hundred twenty-eight million, five hundred eighty thousand, three hundred twenty".