1243922 has 8 divisors (see below), whose sum is σ = 1893936. Its totient is φ = 612612.

The previous prime is 1243889. The next prime is 1243927. The reversal of 1243922 is 2293421.

1243922 is nontrivially palindromic in base 3.

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 (1243927) 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, 4508 + ... + 4775.

It is an arithmetic number, because the mean of its divisors is an integer number (236742).

2^1243922 is an apocalyptic number.

1243922 is a deficient number, since it is larger than the sum of its proper divisors (650014).

1243922 is an equidigital number, since it uses as much as digits as its factorization.

1243922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9352.

The product of its digits is 864, while the sum is 23.

The square root of 1243922 is about 1115.3125122583. The cubic root of 1243922 is about 107.5468553632.

It can be divided in two parts, 12 and 43922, that added together give a palindrome (43934).

The spelling of 1243922 in words is "one million, two hundred forty-three thousand, nine hundred twenty-two".