1422634 has 4 divisors (see below), whose sum is σ = 2133954. Its totient is φ = 711316.

The previous prime is 1422601. The next prime is 1422637. The reversal of 1422634 is 4362241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4362241 = 13 ⋅335557.

It can be written as a sum of positive squares in only one way, i.e., 855625 + 567009 = 925^2 + 753^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 1 + 4⁴ + 2¹¹ + 2¹⁵ + 6⁷ + 3¹⁰ + 4¹⁰ .

It is not an unprimeable number, because it can be changed into a prime (1422637) 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, 355657 + ... + 355660.

2^1422634 is an apocalyptic number.

1422634 is a deficient number, since it is larger than the sum of its proper divisors (711320).

1422634 is an equidigital number, since it uses as much as digits as its factorization.

1422634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711319.

The product of its digits is 1152, while the sum is 22.

The square root of 1422634 is about 1192.7422185871. The cubic root of 1422634 is about 112.4685409980.

Adding to 1422634 its reverse (4362241), we get a palindrome (5784875).

The spelling of 1422634 in words is "one million, four hundred twenty-two thousand, six hundred thirty-four".