11113428 has 24 divisors (see below), whose sum is σ = 26053888. Its totient is φ = 3686976.

The previous prime is 11113379. The next prime is 11113429. The reversal of 11113428 is 82431111.

It is a happy number.

11113428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11113428² = 247016563822368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11113429) 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, 600 + ... + 4752.

Almost surely, 2^11113428 is an apocalyptic number.

It is an amenable number.

11113428 is an abundant number, since it is smaller than the sum of its proper divisors (14940460).

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

11113428 is a wasteful number, since it uses less digits than its factorization.

11113428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4383 (or 4381 counting only the distinct ones).

The product of its digits is 192, while the sum is 21.

The square root of 11113428 is about 3333.6808485516. The cubic root of 11113428 is about 223.1598256338.

Adding to 11113428 its reverse (82431111), we get a palindrome (93544539).

The spelling of 11113428 in words is "eleven million, one hundred thirteen thousand, four hundred twenty-eight".