808428 has 12 divisors (see below), whose sum is σ = 1886360. Its totient is φ = 269472.

The previous prime is 808421. The next prime is 808439. The reversal of 808428 is 824808.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 808395 and 808404.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 808428.

It is not an unprimeable number, because it can be changed into a prime (808421) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 33673 + ... + 33696.

2⁸⁰⁸⁴²⁸ is an apocalyptic number.

It is an amenable number.

808428 is an abundant number, since it is smaller than the sum of its proper divisors (1077932).

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

808428 is a wasteful number, since it uses less digits than its factorization.

808428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67376 (or 67374 counting only the distinct ones).

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

The square root of 808428 is about 899.1262425266. The cubic root of 808428 is about 93.1566327983.

The spelling of 808428 in words is "eight hundred eight thousand, four hundred twenty-eight".