428808325 has 12 divisors (see below), whose sum is σ = 580061088. Its totient is φ = 311860400.

The previous prime is 428808313. The next prime is 428808329. The reversal of 428808325 is 523808824.

It is not a de Polignac number, because 428808325 - 2¹⁹ = 428284037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428808329) 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 11 ways as a sum of consecutive naturals, for example, 779377 + ... + 779926.

It is an arithmetic number, because the mean of its divisors is an integer number (48338424).

Almost surely, 2^428808325 is an apocalyptic number.

It is an amenable number.

428808325 is a deficient number, since it is larger than the sum of its proper divisors (151252763).

428808325 is a wasteful number, since it uses less digits than its factorization.

428808325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1559324 (or 1559319 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 40.

The square root of 428808325 is about 20707.6875821517. The cubic root of 428808325 is about 754.0863324515.

The spelling of 428808325 in words is "four hundred twenty-eight million, eight hundred eight thousand, three hundred twenty-five".