1128394 has 4 divisors (see below), whose sum is σ = 1692594. Its totient is φ = 564196.

The previous prime is 1128383. The next prime is 1128397. The reversal of 1128394 is 4938211.

It is a happy number.

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., 585225 + 543169 = 765^2 + 737^2 .

It is not an unprimeable number, because it can be changed into a prime (1128397) 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, 282097 + ... + 282100.

2^1128394 is an apocalyptic number.

1128394 is a deficient number, since it is larger than the sum of its proper divisors (564200).

1128394 is an equidigital number, since it uses as much as digits as its factorization.

1128394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564199.

The product of its digits is 1728, while the sum is 28.

The square root of 1128394 is about 1062.2589138247. The cubic root of 1128394 is about 104.1086758463.

The spelling of 1128394 in words is "one million, one hundred twenty-eight thousand, three hundred ninety-four".