428558 has 16 divisors (see below), whose sum is σ = 707616. Its totient is φ = 193440.

The previous prime is 428557. The next prime is 428563. The reversal of 428558 is 855824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1223 + ... + 1533.

It is an arithmetic number, because the mean of its divisors is an integer number (44226).

2⁴²⁸⁵⁵⁸ is an apocalyptic number.

428558 is a deficient number, since it is larger than the sum of its proper divisors (279058).

428558 is a wasteful number, since it uses less digits than its factorization.

428558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379.

The product of its digits is 12800, while the sum is 32.

The square root of 428558 is about 654.6434143868. The cubic root of 428558 is about 75.3939566485.

The spelling of 428558 in words is "four hundred twenty-eight thousand, five hundred fifty-eight".