428170 has 16 divisors (see below), whose sum is σ = 787968. Its totient is φ = 167440.

The previous prime is 428167. The next prime is 428173. The reversal of 428170 is 71824.

It is an interprime number because it is at equal distance from previous prime (428167) and next prime (428173).

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (428173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15 + ... + 925.

It is an arithmetic number, because the mean of its divisors is an integer number (49248).

2⁴²⁸¹⁷⁰ is an apocalyptic number.

428170 is a deficient number, since it is larger than the sum of its proper divisors (359798).

428170 is a wasteful number, since it uses less digits than its factorization.

428170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 428170 is about 654.3470027440. The cubic root of 428170 is about 75.3711968449.

Adding to 428170 its reverse (71824), we get a palindrome (499994).

The spelling of 428170 in words is "four hundred twenty-eight thousand, one hundred seventy".