11047728 has 40 divisors (see below), whose sum is σ = 29783808. Its totient is φ = 3522112.

The previous prime is 11047727. The next prime is 11047733. The reversal of 11047728 is 82774011.

11047728 = 572² + 573² + ... + 603².

It is a junction number, because it is equal to n+sod(n) for n = 11047695 and 11047704.

It is not an unprimeable number, because it can be changed into a prime (11047723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3900 + ... + 6107.

Almost surely, 2^11047728 is an apocalyptic number.

It is an amenable number.

11047728 is an abundant number, since it is smaller than the sum of its proper divisors (18736080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11047728 is a wasteful number, since it uses less digits than its factorization.

11047728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10041 (or 10035 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 11047728 is about 3323.8122690670. The cubic root of 11047728 is about 222.7191998790.

The spelling of 11047728 in words is "eleven million, forty-seven thousand, seven hundred twenty-eight".