1128404 has 6 divisors (see below), whose sum is σ = 1974714. Its totient is φ = 564200.

The previous prime is 1128397. The next prime is 1128427. The reversal of 1128404 is 4048211.

It can be written as a sum of positive squares in only one way, i.e., 828100 + 300304 = 910^2 + 548^2 .

It is a congruent 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 as a sum of consecutive naturals, namely, 141047 + ... + 141054.

It is an arithmetic number, because the mean of its divisors is an integer number (329119).

2^1128404 is an apocalyptic number.

It is an amenable number.

1128404 is a deficient number, since it is larger than the sum of its proper divisors (846310).

1128404 is a wasteful number, since it uses less digits than its factorization.

1128404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282105 (or 282103 counting only the distinct ones).

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

The square root of 1128404 is about 1062.2636207646. The cubic root of 1128404 is about 104.1089833877.

The spelling of 1128404 in words is "one million, one hundred twenty-eight thousand, four hundred four".