428260 has 72 divisors (see below), whose sum is σ = 1149120. Its totient is φ = 133056.

The previous prime is 428251. The next prime is 428273. The reversal of 428260 is 62824.

428260 is nontrivially palindromic in base 13.

It is a nialpdrome in base 14.

It is a zygodrome in base 13.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18609 + ... + 18631.

It is an arithmetic number, because the mean of its divisors is an integer number (15960).

2⁴²⁸²⁶⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 428260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (574560).

428260 is an abundant number, since it is smaller than the sum of its proper divisors (720860).

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

428260 is a wasteful number, since it uses less digits than its factorization.

428260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65 (or 56 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 428260 is about 654.4157699811. The cubic root of 428260 is about 75.3764774051.

The spelling of 428260 in words is "four hundred twenty-eight thousand, two hundred sixty".