1112428 has 12 divisors (see below), whose sum is σ = 1974672. Its totient is φ = 548240.

The previous prime is 1112413. The next prime is 1112467. The reversal of 1112428 is 8242111.

It is a happy number.

It is an unprimeable number.

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, 1675 + ... + 2242.

It is an arithmetic number, because the mean of its divisors is an integer number (164556).

2^1112428 is an apocalyptic number.

It is an amenable number.

1112428 is a deficient number, since it is larger than the sum of its proper divisors (862244).

1112428 is a wasteful number, since it uses less digits than its factorization.

1112428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3992 (or 3990 counting only the distinct ones).

The product of its digits is 128, while the sum is 19.

The square root of 1112428 is about 1054.7170236608. The cubic root of 1112428 is about 103.6153195097.

Adding to 1112428 its reverse (8242111), we get a palindrome (9354539).

It can be divided in two parts, 1112 and 428, that added together give a triangular number (1540 = T₅₅).

The spelling of 1112428 in words is "one million, one hundred twelve thousand, four hundred twenty-eight".