428706868 has 12 divisors (see below), whose sum is σ = 751744000. Its totient is φ = 213922872.

The previous prime is 428706857. The next prime is 428706871. The reversal of 428706868 is 868607824.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

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 3 ways as a sum of consecutive naturals, for example, 105396 + ... + 109387.

Almost surely, 2^428706868 is an apocalyptic number.

It is an amenable number.

428706868 is a deficient number, since it is larger than the sum of its proper divisors (323037132).

428706868 is a wasteful number, since it uses less digits than its factorization.

428706868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215286 (or 215284 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 49.

The square root of 428706868 is about 20705.2376948443. The cubic root of 428706868 is about 754.0268549280.

The spelling of 428706868 in words is "four hundred twenty-eight million, seven hundred six thousand, eight hundred sixty-eight".