1422242 has 4 divisors (see below), whose sum is σ = 2133366. Its totient is φ = 711120.

The previous prime is 1422241. The next prime is 1422257. The reversal of 1422242 is 2422241.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 1343281 + 78961 = 1159^2 + 281^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1422242.

It is not an unprimeable number, because it can be changed into a prime (1422241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 355559 + ... + 355562.

2^1422242 is an apocalyptic number.

1422242 is a deficient number, since it is larger than the sum of its proper divisors (711124).

1422242 is an equidigital number, since it uses as much as digits as its factorization.

1422242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711123.

The product of its digits is 256, while the sum is 17.

The square root of 1422242 is about 1192.5778800565. The cubic root of 1422242 is about 112.4582099927.

Adding to 1422242 its reverse (2422241), we get a palindrome (3844483).

Subtracting 1422242 from its reverse (2422241), we obtain a palindrome (999999).

The spelling of 1422242 in words is "one million, four hundred twenty-two thousand, two hundred forty-two".