1422423 has 6 divisors (see below), whose sum is σ = 2054624. Its totient is φ = 948276.

The previous prime is 1422419. The next prime is 1422433. The reversal of 1422423 is 3242241.

It is not a de Polignac number, because 1422423 - 2² = 1422419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1422396 and 1422405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422433) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 79015 + ... + 79032.

2^1422423 is an apocalyptic number.

1422423 is a deficient number, since it is larger than the sum of its proper divisors (632201).

1422423 is a wasteful number, since it uses less digits than its factorization.

1422423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158053 (or 158050 counting only the distinct ones).

The product of its digits is 384, while the sum is 18.

The square root of 1422423 is about 1192.6537636716. The cubic root of 1422423 is about 112.4629804122.

Adding to 1422423 its reverse (3242241), we get a palindrome (4664664).

The spelling of 1422423 in words is "one million, four hundred twenty-two thousand, four hundred twenty-three".