427222 has 4 divisors (see below), whose sum is σ = 640836. Its totient is φ = 213610.

The previous prime is 427213. The next prime is 427237. The reversal of 427222 is 222724.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 427222.

It is a congruent number.

It is an unprimeable number.

427222 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106804 + ... + 106807.

It is an arithmetic number, because the mean of its divisors is an integer number (160209).

2⁴²⁷²²² is an apocalyptic number.

427222 is a deficient number, since it is larger than the sum of its proper divisors (213614).

427222 is a wasteful number, since it uses less digits than its factorization.

427222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213613.

The product of its digits is 448, while the sum is 19.

The square root of 427222 is about 653.6222150447. The cubic root of 427222 is about 75.3155299424.

Adding to 427222 its reverse (222724), we get a palindrome (649946).

It can be divided in two parts, 42722 and 2, that added together give a palindrome (42724).

The spelling of 427222 in words is "four hundred twenty-seven thousand, two hundred twenty-two", and thus it is an iban number.