11281356 has 30 divisors (see below), whose sum is σ = 29492540. Its totient is φ = 3760344.

The previous prime is 11281343. The next prime is 11281357. The reversal of 11281356 is 65318211.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (11281357) 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 in 9 ways as a sum of consecutive naturals, for example, 17086 + ... + 17733.

Almost surely, 2^11281356 is an apocalyptic number.

It is an amenable number.

11281356 is an abundant number, since it is smaller than the sum of its proper divisors (18211184).

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

11281356 is a wasteful number, since it uses less digits than its factorization.

11281356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34835 (or 34824 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The square root of 11281356 is about 3358.7729902451. The cubic root of 11281356 is about 224.2782204057.

Adding to 11281356 its reverse (65318211), we get a palindrome (76599567).

The spelling of 11281356 in words is "eleven million, two hundred eighty-one thousand, three hundred fifty-six".