428674648 has 24 divisors (see below), whose sum is σ = 818246700. Its totient is φ = 210483392.

The previous prime is 428674627. The next prime is 428674651. The reversal of 428674648 is 846476824.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 449340 + ... + 450292.

Almost surely, 2^428674648 is an apocalyptic number.

It is an amenable number.

428674648 is a deficient number, since it is larger than the sum of its proper divisors (389572052).

428674648 is an frugal number, since it uses more digits than its factorization.

428674648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1971 (or 1014 counting only the distinct ones).

The product of its digits is 2064384, while the sum is 49.

The square root of 428674648 is about 20704.4596162276. The cubic root of 428674648 is about 754.0079645114.

The spelling of 428674648 in words is "four hundred twenty-eight million, six hundred seventy-four thousand, six hundred forty-eight".