428088 has 16 divisors (see below), whose sum is σ = 1070280. Its totient is φ = 142688.

The previous prime is 428083. The next prime is 428093. The reversal of 428088 is 880824.

It is an interprime number because it is at equal distance from previous prime (428083) and next prime (428093).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 428088.

It is not an unprimeable number, because it can be changed into a prime (428083) by changing a digit.

428088 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8895 + ... + 8942.

2⁴²⁸⁰⁸⁸ is an apocalyptic number.

It is an amenable number.

428088 is an abundant number, since it is smaller than the sum of its proper divisors (642192).

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

428088 is a wasteful number, since it uses less digits than its factorization.

428088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17846 (or 17842 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 30.

The square root of 428088 is about 654.2843418576. The cubic root of 428088 is about 75.3663850234.

The spelling of 428088 in words is "four hundred twenty-eight thousand, eighty-eight".