428588 has 12 divisors (see below), whose sum is σ = 757680. Its totient is φ = 212112.

The previous prime is 428579. The next prime is 428629. The reversal of 428588 is 885824.

It is an unprimeable number.

428588 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56 + ... + 927.

It is an arithmetic number, because the mean of its divisors is an integer number (63140).

2⁴²⁸⁵⁸⁸ is an apocalyptic number.

It is an amenable number.

428588 is a deficient number, since it is larger than the sum of its proper divisors (329092).

428588 is a wasteful number, since it uses less digits than its factorization.

428588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096 (or 1094 counting only the distinct ones).

The product of its digits is 20480, while the sum is 35.

The square root of 428588 is about 654.6663272233. Note that the first 3 decimals coincide. The cubic root of 428588 is about 75.3957158549.

The spelling of 428588 in words is "four hundred twenty-eight thousand, five hundred eighty-eight".