1422855 has 24 divisors (see below), whose sum is σ = 2819232. Its totient is φ = 650304.

The previous prime is 1422833. The next prime is 1422857. The reversal of 1422855 is 5582241.

It is a happy number.

It is not a de Polignac number, because 1422855 - 2⁷ = 1422727 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1944 + ... + 2573.

It is an arithmetic number, because the mean of its divisors is an integer number (117468).

2^1422855 is an apocalyptic number.

1422855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1422855 is a deficient number, since it is larger than the sum of its proper divisors (1396377).

1422855 is a wasteful number, since it uses less digits than its factorization.

1422855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4535 (or 4532 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 1422855 is about 1192.8348586456. The cubic root of 1422855 is about 112.4743645292.

The spelling of 1422855 in words is "one million, four hundred twenty-two thousand, eight hundred fifty-five".