11021648 has 30 divisors (see below), whose sum is σ = 23476362. Its totient is φ = 5008960.

The previous prime is 11021639. The next prime is 11021683. The reversal of 11021648 is 84612011.

It can be written as a sum of positive squares in only one way, i.e., 7441984 + 3579664 = 2728^2 + 1892^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 911 + ... + 4782.

Almost surely, 2^11021648 is an apocalyptic number.

It is an amenable number.

11021648 is an abundant number, since it is smaller than the sum of its proper divisors (12454714).

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

11021648 is a wasteful number, since it uses less digits than its factorization.

11021648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5723 (or 5706 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 11021648 is about 3319.8867450562. The cubic root of 11021648 is about 222.5438065495.

Adding to 11021648 its reverse (84612011), we get a palindrome (95633659).

The spelling of 11021648 in words is "eleven million, twenty-one thousand, six hundred forty-eight".