422401 has 4 divisors (see below), whose sum is σ = 482752. Its totient is φ = 362052.

The previous prime is 422393. The next prime is 422407. The reversal of 422401 is 104224.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 422401 - 2³ = 422393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422407) 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 3 ways as a sum of consecutive naturals, for example, 30165 + ... + 30178.

It is an arithmetic number, because the mean of its divisors is an integer number (120688).

2⁴²²⁴⁰¹ is an apocalyptic number.

It is an amenable number.

422401 is a deficient number, since it is larger than the sum of its proper divisors (60351).

422401 is an equidigital number, since it uses as much as digits as its factorization.

422401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60350.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 422401 is about 649.9238416922. The cubic root of 422401 is about 75.0311574248.

Adding to 422401 its reverse (104224), we get a palindrome (526625).

The spelling of 422401 in words is "four hundred twenty-two thousand, four hundred one", and thus it is an iban number.