11289272 has 8 divisors (see below), whose sum is σ = 21167400. Its totient is φ = 5644632.

The previous prime is 11289253. The next prime is 11289277. The reversal of 11289272 is 27298211.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11289277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 705572 + ... + 705587.

It is an arithmetic number, because the mean of its divisors is an integer number (2645925).

Almost surely, 2^11289272 is an apocalyptic number.

It is an amenable number.

11289272 is a deficient number, since it is larger than the sum of its proper divisors (9878128).

11289272 is a wasteful number, since it uses less digits than its factorization.

11289272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411165 (or 1411161 counting only the distinct ones).

The product of its digits is 4032, while the sum is 32.

The square root of 11289272 is about 3359.9511901217. The cubic root of 11289272 is about 224.3306659716.

The spelling of 11289272 in words is "eleven million, two hundred eighty-nine thousand, two hundred seventy-two".