1422245 has 16 divisors (see below), whose sum is σ = 1961280. Its totient is φ = 979200.

The previous prime is 1422241. The next prime is 1422257. The reversal of 1422245 is 5422241.

It is a happy number.

It is not a de Polignac number, because 1422245 - 2² = 1422241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 365 + ... + 1725.

It is an arithmetic number, because the mean of its divisors is an integer number (122580).

2^1422245 is an apocalyptic number.

It is an amenable number.

1422245 is a deficient number, since it is larger than the sum of its proper divisors (539035).

1422245 is a wasteful number, since it uses less digits than its factorization.

1422245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396.

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

The square root of 1422245 is about 1192.5791378353. The cubic root of 1422245 is about 112.4582890638.

Adding to 1422245 its reverse (5422241), we get a palindrome (6844486).

The spelling of 1422245 in words is "one million, four hundred twenty-two thousand, two hundred forty-five".