428288325 has 12 divisors (see below), whose sum is σ = 708103488. Its totient is φ = 228420400.

The previous prime is 428288303. The next prime is 428288347. The reversal of 428288325 is 523882824.

It is an interprime number because it is at equal distance from previous prime (428288303) and next prime (428288347).

It is not a de Polignac number, because 428288325 - 2⁶ = 428288261 is a prime.

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 11 ways as a sum of consecutive naturals, for example, 2855181 + ... + 2855330.

It is an arithmetic number, because the mean of its divisors is an integer number (59008624).

Almost surely, 2^428288325 is an apocalyptic number.

It is an amenable number.

428288325 is a deficient number, since it is larger than the sum of its proper divisors (279815163).

428288325 is a wasteful number, since it uses less digits than its factorization.

428288325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5710524 (or 5710519 counting only the distinct ones).

The product of its digits is 245760, while the sum is 42.

The square root of 428288325 is about 20695.1280498575. The cubic root of 428288325 is about 753.7813916174.

The spelling of 428288325 in words is "four hundred twenty-eight million, two hundred eighty-eight thousand, three hundred twenty-five".