428906256 has 40 divisors (see below), whose sum is σ = 1108753440. Its totient is φ = 142872576.

The previous prime is 428906249. The next prime is 428906279. The reversal of 428906256 is 652609824.

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 in 7 ways as a sum of consecutive naturals, for example, 127411 + ... + 130733.

It is an arithmetic number, because the mean of its divisors is an integer number (27718836).

Almost surely, 2^428906256 is an apocalyptic number.

It is an amenable number.

428906256 is an abundant number, since it is smaller than the sum of its proper divisors (679847184).

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

428906256 is a wasteful number, since it uses less digits than its factorization.

428906256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6023 (or 6017 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 428906256 is about 20710.0520520833. The cubic root of 428906256 is about 754.1437340171.

The spelling of 428906256 in words is "four hundred twenty-eight million, nine hundred six thousand, two hundred fifty-six".