1422443 has 4 divisors (see below), whose sum is σ = 1551768. Its totient is φ = 1293120.

The previous prime is 1422439. The next prime is 1422461. The reversal of 1422443 is 3442241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3442241 = 11 ⋅312931.

It is a cyclic number.

It is not a de Polignac number, because 1422443 - 2² = 1422439 is a prime.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 64646 + ... + 64667.

It is an arithmetic number, because the mean of its divisors is an integer number (387942).

2^1422443 is an apocalyptic number.

1422443 is a deficient number, since it is larger than the sum of its proper divisors (129325).

1422443 is a wasteful number, since it uses less digits than its factorization.

1422443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129324.

The product of its digits is 768, while the sum is 20.

The square root of 1422443 is about 1192.6621483052. The cubic root of 1422443 is about 112.4635075055.

Adding to 1422443 its reverse (3442241), we get a palindrome (4864684).

The spelling of 1422443 in words is "one million, four hundred twenty-two thousand, four hundred forty-three".