420325 has 24 divisors (see below), whose sum is σ = 589248. Its totient is φ = 295680.

The previous prime is 420323. The next prime is 420331. The reversal of 420325 is 523024.

It is not a de Polignac number, because 420325 - 2¹ = 420323 is a prime.

It is an Ulam number.

It is a Duffinian number.

420325 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 420299 and 420308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420323) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 9754 + ... + 9796.

It is an arithmetic number, because the mean of its divisors is an integer number (24552).

2⁴²⁰³²⁵ is an apocalyptic number.

It is an amenable number.

420325 is a deficient number, since it is larger than the sum of its proper divisors (168923).

420325 is a wasteful number, since it uses less digits than its factorization.

420325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93 (or 88 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 420325 is about 648.3247642964. The cubic root of 420325 is about 74.9080354278.

Adding to 420325 its reverse (523024), we get a palindrome (943349).

The spelling of 420325 in words is "four hundred twenty thousand, three hundred twenty-five".