428904568 has 8 divisors (see below), whose sum is σ = 804196080. Its totient is φ = 214452280.

The previous prime is 428904557. The next prime is 428904589. The reversal of 428904568 is 865409824.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26806528 + ... + 26806543.

It is an arithmetic number, because the mean of its divisors is an integer number (100524510).

Almost surely, 2^428904568 is an apocalyptic number.

It is an amenable number.

428904568 is a deficient number, since it is larger than the sum of its proper divisors (375291512).

428904568 is a wasteful number, since it uses less digits than its factorization.

428904568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53613077 (or 53613073 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 46.

The square root of 428904568 is about 20710.0112988863. The cubic root of 428904568 is about 754.1427446818.

The spelling of 428904568 in words is "four hundred twenty-eight million, nine hundred four thousand, five hundred sixty-eight".