628813320 has 64 divisors (see below), whose sum is σ = 1904109120. Its totient is φ = 166113024.

The previous prime is 628813319. The next prime is 628813337. The reversal of 628813320 is 23318826.

628813320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11647 + ... + 37326.

It is an arithmetic number, because the mean of its divisors is an integer number (29751705).

Almost surely, 2^628813320 is an apocalyptic number.

628813320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

628813320 is an abundant number, since it is smaller than the sum of its proper divisors (1275295800).

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

628813320 is a wasteful number, since it uses less digits than its factorization.

628813320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49094 (or 49090 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 628813320 is about 25076.1504222638. The cubic root of 628813320 is about 856.7232983164.

The spelling of 628813320 in words is "six hundred twenty-eight million, eight hundred thirteen thousand, three hundred twenty".