11128648 has 8 divisors (see below), whose sum is σ = 20866230. Its totient is φ = 5564320.

The previous prime is 11128643. The next prime is 11128669. The reversal of 11128648 is 84682111.

11128648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 7279204 + 3849444 = 2698^2 + 1962^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (11128643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 695533 + ... + 695548.

Almost surely, 2^11128648 is an apocalyptic number.

It is an amenable number.

11128648 is a deficient number, since it is larger than the sum of its proper divisors (9737582).

11128648 is a wasteful number, since it uses less digits than its factorization.

11128648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391087 (or 1391083 counting only the distinct ones).

The product of its digits is 3072, while the sum is 31.

The square root of 11128648 is about 3335.9628295291. The cubic root of 11128648 is about 223.2616526971.

The spelling of 11128648 in words is "eleven million, one hundred twenty-eight thousand, six hundred forty-eight".