428210 has 8 divisors (see below), whose sum is σ = 770796. Its totient is φ = 171280.

The previous prime is 428177. The next prime is 428221. The reversal of 428210 is 12824.

It can be written as a sum of positive squares in 2 ways, for example, as 375769 + 52441 = 613^2 + 229^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a Curzon number.

It is an unprimeable number.

428210 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 3 ways as a sum of consecutive naturals, for example, 21401 + ... + 21420.

2⁴²⁸²¹⁰ is an apocalyptic number.

428210 is a deficient number, since it is larger than the sum of its proper divisors (342586).

428210 is a wasteful number, since it uses less digits than its factorization.

428210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42828.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 428210 is about 654.3775668527. The cubic root of 428210 is about 75.3735438519.

The spelling of 428210 in words is "four hundred twenty-eight thousand, two hundred ten".