428270 has 16 divisors (see below), whose sum is σ = 779760. Its totient is φ = 169344.

The previous prime is 428251. The next prime is 428273. The reversal of 428270 is 72824.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428273) 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, 941 + ... + 1319.

It is an arithmetic number, because the mean of its divisors is an integer number (48735).

2⁴²⁸²⁷⁰ is an apocalyptic number.

428270 is a deficient number, since it is larger than the sum of its proper divisors (351490).

428270 is a wasteful number, since it uses less digits than its factorization.

428270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 428270 is about 654.4234103392. The cubic root of 428270 is about 75.3770640884.

The spelling of 428270 in words is "four hundred twenty-eight thousand, two hundred seventy".