1422273 has 8 divisors (see below), whose sum is σ = 1911808. Its totient is φ = 940464.

The previous prime is 1422257. The next prime is 1422277. The reversal of 1422273 is 3722241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1422273 - 2⁴ = 1422257 is a prime.

It is an Ulam number.

It is a Duffinian 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 (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1486 + ... + 2247.

It is an arithmetic number, because the mean of its divisors is an integer number (238976).

2^1422273 is an apocalyptic number.

It is an amenable number.

1422273 is a deficient number, since it is larger than the sum of its proper divisors (489535).

1422273 is a wasteful number, since it uses less digits than its factorization.

1422273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3863.

The product of its digits is 672, while the sum is 21.

The square root of 1422273 is about 1192.5908770404. The cubic root of 1422273 is about 112.4590270546.

Subtracting 1422273 from its reverse (3722241), we obtain a cube (2299968 = 132³).

It can be divided in two parts, 142 and 2273, that added together give a triangular number (2415 = T₆₉).

The spelling of 1422273 in words is "one million, four hundred twenty-two thousand, two hundred seventy-three".