11285428 has 36 divisors (see below), whose sum is σ = 24816736. Its totient is φ = 4395600.

The previous prime is 11285419. The next prime is 11285429. The reversal of 11285428 is 82458211.

11285428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 11285428.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11285429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1723 + ... + 5053.

Almost surely, 2^11285428 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 11285428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12408368).

11285428 is an abundant number, since it is smaller than the sum of its proper divisors (13531308).

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

11285428 is a wasteful number, since it uses less digits than its factorization.

11285428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3364 (or 3351 counting only the distinct ones).

The product of its digits is 5120, while the sum is 31.

The square root of 11285428 is about 3359.3791092998. The cubic root of 11285428 is about 224.3052015315.

It can be divided in two parts, 1128 and 5428, that added together give a palindrome (6556).

The spelling of 11285428 in words is "eleven million, two hundred eighty-five thousand, four hundred twenty-eight".