11288646 has 40 divisors (see below), whose sum is σ = 26789400. Its totient is φ = 3540672.

The previous prime is 11288633. The next prime is 11288677. The reversal of 11288646 is 64688211.

11288646 is a `hidden beast` number, since 1 + 1 + 2 + 8 + 8 + 646 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 11288646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 705 + ... + 4803.

It is an arithmetic number, because the mean of its divisors is an integer number (669735).

Almost surely, 2^11288646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11288646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13394700).

11288646 is an abundant number, since it is smaller than the sum of its proper divisors (15500754).

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

11288646 is a wasteful number, since it uses less digits than its factorization.

11288646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4130 (or 4121 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 11288646 is about 3359.8580327151. The cubic root of 11288646 is about 224.3265194511.

The spelling of 11288646 in words is "eleven million, two hundred eighty-eight thousand, six hundred forty-six".