1128742 has 4 divisors (see below), whose sum is σ = 1693116. Its totient is φ = 564370.

The previous prime is 1128737. The next prime is 1128761. The reversal of 1128742 is 2478211.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282184 + ... + 282187.

It is an arithmetic number, because the mean of its divisors is an integer number (423279).

2^1128742 is an apocalyptic number.

1128742 is a deficient number, since it is larger than the sum of its proper divisors (564374).

1128742 is an equidigital number, since it uses as much as digits as its factorization.

1128742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564373.

The product of its digits is 896, while the sum is 25.

The square root of 1128742 is about 1062.4227030707. The cubic root of 1128742 is about 104.1193772193.

The spelling of 1128742 in words is "one million, one hundred twenty-eight thousand, seven hundred forty-two".