425170 has 32 divisors (see below), whose sum is σ = 843696. Its totient is φ = 153600.

The previous prime is 425149. The next prime is 425189. The reversal of 425170 is 71524.

It can be written as a sum of positive squares in 8 ways, for example, as 32041 + 393129 = 179^2 + 627^2 .

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

425170 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6940 + ... + 7000.

2⁴²⁵¹⁷⁰ is an apocalyptic number.

425170 is a deficient number, since it is larger than the sum of its proper divisors (418526).

425170 is a wasteful number, since it uses less digits than its factorization.

425170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 425170 is about 652.0506115326. The cubic root of 425170 is about 75.1947531046.

Adding to 425170 its reverse (71524), we get a palindrome (496694).

It can be divided in two parts, 425 and 170, that added together give a palindrome (595).

The spelling of 425170 in words is "four hundred twenty-five thousand, one hundred seventy".