1122842 has 16 divisors (see below), whose sum is σ = 1942080. Its totient is φ = 476928.

The previous prime is 1122841. The next prime is 1122857. The reversal of 1122842 is 2482211.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1122841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1658 + ... + 2234.

It is an arithmetic number, because the mean of its divisors is an integer number (121380).

2^1122842 is an apocalyptic number.

1122842 is a deficient number, since it is larger than the sum of its proper divisors (819238).

1122842 is a wasteful number, since it uses less digits than its factorization.

1122842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725.

The product of its digits is 256, while the sum is 20.

The square root of 1122842 is about 1059.6423925080. The cubic root of 1122842 is about 103.9376475357.

The spelling of 1122842 in words is "one million, one hundred twenty-two thousand, eight hundred forty-two".