1112689442 has 4 divisors (see below), whose sum is σ = 1669034166. Its totient is φ = 556344720.

The previous prime is 1112689441. The next prime is 1112689453. The reversal of 1112689442 is 2449862111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1000520161 + 112169281 = 31631^2 + 10591^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1112689396 and 1112689405.

It is not an unprimeable number, because it can be changed into a prime (1112689441) 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 as a sum of consecutive naturals, namely, 278172359 + ... + 278172362.

Almost surely, 2^1112689442 is an apocalyptic number.

1112689442 is a deficient number, since it is larger than the sum of its proper divisors (556344724).

1112689442 is an equidigital number, since it uses as much as digits as its factorization.

1112689442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556344723.

The product of its digits is 27648, while the sum is 38.

The square root of 1112689442 is about 33356.9998950745. Note that the first 3 decimals coincide. The cubic root of 1112689442 is about 1036.2343607232.

The spelling of 1112689442 in words is "one billion, one hundred twelve million, six hundred eighty-nine thousand, four hundred forty-two".