428470 has 16 divisors (see below), whose sum is σ = 881568. Its totient is φ = 146880.

The previous prime is 428429. The next prime is 428471. The reversal of 428470 is 74824.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428471) by changing a digit.

428470 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 7 ways as a sum of consecutive naturals, for example, 2991 + ... + 3130.

It is an arithmetic number, because the mean of its divisors is an integer number (55098).

2⁴²⁸⁴⁷⁰ is an apocalyptic number.

428470 is an abundant number, since it is smaller than the sum of its proper divisors (453098).

It is a weird number, because it is abundant, but not a pseudoperfect number.

428470 is a wasteful number, since it uses less digits than its factorization.

428470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6135.

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 428470 is about 654.5761987729. The cubic root of 428470 is about 75.3887958360.

It can be divided in two parts, 428 and 470, that added together give a palindrome (898).

The spelling of 428470 in words is "four hundred twenty-eight thousand, four hundred seventy".