1422425 has 6 divisors (see below), whose sum is σ = 1763838. Its totient is φ = 1137920.

The previous prime is 1422419. The next prime is 1422433. The reversal of 1422425 is 5242241.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 13456 + 1408969 = 116^2 + 1187^2 .

It is not a de Polignac number, because 1422425 - 2⁴ = 1422409 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1422397 and 1422406.

It is a congruent number.

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 28424 + ... + 28473.

It is an arithmetic number, because the mean of its divisors is an integer number (293973).

2^1422425 is an apocalyptic number.

It is an amenable number.

1422425 is a deficient number, since it is larger than the sum of its proper divisors (341413).

1422425 is an equidigital number, since it uses as much as digits as its factorization.

1422425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56907 (or 56902 counting only the distinct ones).

The product of its digits is 640, while the sum is 20.

The square root of 1422425 is about 1192.6546021376. The cubic root of 1422425 is about 112.4630331217.

Adding to 1422425 its reverse (5242241), we get a palindrome (6664666).

The spelling of 1422425 in words is "one million, four hundred twenty-two thousand, four hundred twenty-five".