11017428 has 48 divisors (see below), whose sum is σ = 27760320. Its totient is φ = 3387904.

The previous prime is 11017373. The next prime is 11017441. The reversal of 11017428 is 82471011.

It is a junction number, because it is equal to n+sod(n) for n = 11017398 and 11017407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10303 + ... + 11321.

It is an arithmetic number, because the mean of its divisors is an integer number (578340).

Almost surely, 2^11017428 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11017428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13880160).

11017428 is an abundant number, since it is smaller than the sum of its proper divisors (16742892).

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

11017428 is a wasteful number, since it uses less digits than its factorization.

11017428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096 (or 1094 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 24.

The square root of 11017428 is about 3319.2511203583. The cubic root of 11017428 is about 222.5154001881.

Adding to 11017428 its reverse (82471011), we get a palindrome (93488439).

The spelling of 11017428 in words is "eleven million, seventeen thousand, four hundred twenty-eight".