426828 has 12 divisors (see below), whose sum is σ = 995960. Its totient is φ = 142272.

The previous prime is 426799. The next prime is 426841. The reversal of 426828 is 828624.

It is a happy number.

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 = 426795 and 426804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17773 + ... + 17796.

2⁴²⁶⁸²⁸ is an apocalyptic number.

It is an amenable number.

426828 is an abundant number, since it is smaller than the sum of its proper divisors (569132).

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

426828 is a wasteful number, since it uses less digits than its factorization.

426828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35576 (or 35574 counting only the distinct ones).

The product of its digits is 6144, while the sum is 30.

The square root of 426828 is about 653.3207481781. The cubic root of 426828 is about 75.2923698947.

The spelling of 426828 in words is "four hundred twenty-six thousand, eight hundred twenty-eight".