1422279 has 14 divisors (see below), whose sum is σ = 2133536. Its totient is φ = 947700.

The previous prime is 1422277. The next prime is 1422287. The reversal of 1422279 is 9722241.

It is not a de Polignac number, because 1422279 - 2¹ = 1422277 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 247 + ... + 1704.

2^1422279 is an apocalyptic number.

1422279 is a deficient number, since it is larger than the sum of its proper divisors (711257).

1422279 is an frugal number, since it uses more digits than its factorization.

1422279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1969 (or 1954 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 1422279 is about 1192.5933925693. The cubic root of 1422279 is about 112.4591851942.

The spelling of 1422279 in words is "one million, four hundred twenty-two thousand, two hundred seventy-nine".