420321325 has 18 divisors (see below), whose sum is σ = 550085514. Its totient is φ = 318552480.

The previous prime is 420321301. The next prime is 420321347. The reversal of 420321325 is 523123024.

It can be written as a sum of positive squares in 3 ways, for example, as 4691556 + 415629769 = 2166^2 + 20387^2 .

It is not a de Polignac number, because 420321325 - 2⁷ = 420321197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 420321296 and 420321305.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 14262 + ... + 32311.

Almost surely, 2^420321325 is an apocalyptic number.

It is an amenable number.

420321325 is a deficient number, since it is larger than the sum of its proper divisors (129764189).

420321325 is a wasteful number, since it uses less digits than its factorization.

420321325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46621 (or 46597 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 420321325 is about 20501.7395603398. The cubic root of 420321325 is about 749.0781711433.

Adding to 420321325 its reverse (523123024), we get a palindrome (943444349).

The spelling of 420321325 in words is "four hundred twenty million, three hundred twenty-one thousand, three hundred twenty-five".