11105428 has 6 divisors (see below), whose sum is σ = 19434506. Its totient is φ = 5552712.

The previous prime is 11105411. The next prime is 11105429. The reversal of 11105428 is 82450111.

It can be written as a sum of positive squares in only one way, i.e., 7033104 + 4072324 = 2652^2 + 2018^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11105399 and 11105408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11105429) by changing a digit.

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, 1388175 + ... + 1388182.

Almost surely, 2^11105428 is an apocalyptic number.

It is an amenable number.

11105428 is a deficient number, since it is larger than the sum of its proper divisors (8329078).

11105428 is a wasteful number, since it uses less digits than its factorization.

11105428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2776361 (or 2776359 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 11105428 is about 3332.4807576339. The cubic root of 11105428 is about 223.1062655875.

Adding to 11105428 its reverse (82450111), we get a palindrome (93555539).

The spelling of 11105428 in words is "eleven million, one hundred five thousand, four hundred twenty-eight".