1422005 has 16 divisors (see below), whose sum is σ = 1862784. Its totient is φ = 1035840.

The previous prime is 1421989. The next prime is 1422007. The reversal of 1422005 is 5002241.

It is not a de Polignac number, because 1422005 - 2⁴ = 1421989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422007) 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, 8432 + ... + 8598.

It is an arithmetic number, because the mean of its divisors is an integer number (116424).

2^1422005 is an apocalyptic number.

It is an amenable number.

1422005 is a deficient number, since it is larger than the sum of its proper divisors (440779).

1422005 is a wasteful number, since it uses less digits than its factorization.

1422005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 1422005 is about 1192.4785113368. The cubic root of 1422005 is about 112.4519630305.

Adding to 1422005 its reverse (5002241), we get a palindrome (6424246).

The spelling of 1422005 in words is "one million, four hundred twenty-two thousand, five".