422722 has 8 divisors (see below), whose sum is σ = 671436. Its totient is φ = 198912.

The previous prime is 422711. The next prime is 422749. The reversal of 422722 is 227224.

It can be written as a sum of positive squares in 2 ways, for example, as 421201 + 1521 = 649^2 + 39^2 .

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

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 422722.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6183 + ... + 6250.

2⁴²²⁷²² is an apocalyptic number.

422722 is a deficient number, since it is larger than the sum of its proper divisors (248714).

422722 is a wasteful number, since it uses less digits than its factorization.

422722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12452.

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

The square root of 422722 is about 650.1707468043. The cubic root of 422722 is about 75.0501590394.

Adding to 422722 its reverse (227224), we get a palindrome (649946).

The spelling of 422722 in words is "four hundred twenty-two thousand, seven hundred twenty-two", and thus it is an iban number.