422402 has 8 divisors (see below), whose sum is σ = 638976. Its totient is φ = 209412.

The previous prime is 422393. The next prime is 422407. The reversal of 422402 is 204224.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 578 + ... + 1085.

It is an arithmetic number, because the mean of its divisors is an integer number (79872).

2⁴²²⁴⁰² is an apocalyptic number.

422402 is a deficient number, since it is larger than the sum of its proper divisors (216574).

422402 is a wasteful number, since it uses less digits than its factorization.

422402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1792.

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 422402 is about 649.9246110127. The cubic root of 422402 is about 75.0312166348.

Adding to 422402 its reverse (204224), we get a palindrome (626626).

The spelling of 422402 in words is "four hundred twenty-two thousand, four hundred two", and thus it is an iban number.