1128704 has 18 divisors (see below), whose sum is σ = 2253510. Its totient is φ = 564224.

The previous prime is 1128703. The next prime is 1128713. The reversal of 1128704 is 4078211.

It can be written as a sum of positive squares in only one way, i.e., 719104 + 409600 = 848^2 + 640^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1128704.

It is not an unprimeable number, because it can be changed into a prime (1128703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1949 + ... + 2460.

It is an arithmetic number, because the mean of its divisors is an integer number (125195).

2^1128704 is an apocalyptic number.

It is an amenable number.

1128704 is a deficient number, since it is larger than the sum of its proper divisors (1124806).

1128704 is an frugal number, since it uses more digits than its factorization.

1128704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4425 (or 4411 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 1128704 is about 1062.4048192662. The cubic root of 1128704 is about 104.1182087855.

The spelling of 1128704 in words is "one million, one hundred twenty-eight thousand, seven hundred four".