628022704 has 20 divisors (see below), whose sum is σ = 1288370664. Its totient is φ = 295539968.

The previous prime is 628022693. The next prime is 628022729. The reversal of 628022704 is 407220826.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1154182 + ... + 1154725.

Almost surely, 2^628022704 is an apocalyptic number.

It is an amenable number.

628022704 is an abundant number, since it is smaller than the sum of its proper divisors (660347960).

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

628022704 is a wasteful number, since it uses less digits than its factorization.

628022704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2308932 (or 2308926 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 628022704 is about 25060.3811623048. The cubic root of 628022704 is about 856.3640909013.

The spelling of 628022704 in words is "six hundred twenty-eight million, twenty-two thousand, seven hundred four".