428402804 has 24 divisors (see below), whose sum is σ = 792200640. Its totient is φ = 202146624.

The previous prime is 428402803. The next prime is 428402827. The reversal of 428402804 is 408204824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428402801) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 9272 + ... + 30704.

It is an arithmetic number, because the mean of its divisors is an integer number (33008360).

Almost surely, 2^428402804 is an apocalyptic number.

It is an amenable number.

428402804 is a deficient number, since it is larger than the sum of its proper divisors (363797836).

428402804 is a wasteful number, since it uses less digits than its factorization.

428402804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21719 (or 21717 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 32.

The square root of 428402804 is about 20697.8937092642. The cubic root of 428402804 is about 753.8485461078.

The spelling of 428402804 in words is "four hundred twenty-eight million, four hundred two thousand, eight hundred four".