1422207 has 12 divisors (see below), whose sum is σ = 2162680. Its totient is φ = 898128.

The previous prime is 1422199. The next prime is 1422221. The reversal of 1422207 is 7022241.

It is not a de Polignac number, because 1422207 - 2³ = 1422199 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1422207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3988 + ... + 4329.

2^1422207 is an apocalyptic number.

1422207 is a deficient number, since it is larger than the sum of its proper divisors (740473).

1422207 is a wasteful number, since it uses less digits than its factorization.

1422207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8342 (or 8339 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 1422207 is about 1192.5632058721. The cubic root of 1422207 is about 112.4572874892.

Adding to 1422207 its reverse (7022241), we get a palindrome (8444448).

The spelling of 1422207 in words is "one million, four hundred twenty-two thousand, two hundred seven".