1279922 has 8 divisors (see below), whose sum is σ = 2194176. Its totient is φ = 548532.

The previous prime is 1279921. The next prime is 1279931. The reversal of 1279922 is 2299721.

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

It is not an unprimeable number, because it can be changed into a prime (1279921) 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 3 ways as a sum of consecutive naturals, for example, 45698 + ... + 45725.

It is an arithmetic number, because the mean of its divisors is an integer number (274272).

2^1279922 is an apocalyptic number.

1279922 is a deficient number, since it is larger than the sum of its proper divisors (914254).

1279922 is an equidigital number, since it uses as much as digits as its factorization.

1279922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91432.

The product of its digits is 4536, while the sum is 32.

The square root of 1279922 is about 1131.3363779177. The cubic root of 1279922 is about 108.5744991547.

It can be divided in two parts, 12799 and 22, that added together give a palindrome (12821).

The spelling of 1279922 in words is "one million, two hundred seventy-nine thousand, nine hundred twenty-two".