11281028 has 24 divisors (see below), whose sum is σ = 21803040. Its totient is φ = 5064320.

The previous prime is 11281019. The next prime is 11281031. The reversal of 11281028 is 82018211.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11280994 and 11281012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2108 + ... + 5196.

It is an arithmetic number, because the mean of its divisors is an integer number (908460).

Almost surely, 2^11281028 is an apocalyptic number.

It is an amenable number.

11281028 is a deficient number, since it is larger than the sum of its proper divisors (10522012).

11281028 is a wasteful number, since it uses less digits than its factorization.

11281028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3187 (or 3185 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 23.

The square root of 11281028 is about 3358.7241625355. The cubic root of 11281028 is about 224.2760467909.

Adding to 11281028 its reverse (82018211), we get a palindrome (93299239).

The spelling of 11281028 in words is "eleven million, two hundred eighty-one thousand, twenty-eight".