11242489 has 4 divisors (see below), whose sum is σ = 11271780. Its totient is φ = 11213200.

The previous prime is 11242481. The next prime is 11242501. The reversal of 11242489 is 98424211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8294400 + 2948089 = 2880^2 + 1717^2 .

It is a cyclic number.

It is not a de Polignac number, because 11242489 - 2³ = 11242481 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11242489.

It is not an unprimeable number, because it can be changed into a prime (11242481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14062 + ... + 14839.

It is an arithmetic number, because the mean of its divisors is an integer number (2817945).

Almost surely, 2^11242489 is an apocalyptic number.

It is an amenable number.

11242489 is a deficient number, since it is larger than the sum of its proper divisors (29291).

11242489 is an equidigital number, since it uses as much as digits as its factorization.

11242489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29290.

The product of its digits is 4608, while the sum is 31.

The square root of 11242489 is about 3352.9821055293. The cubic root of 11242489 is about 224.0203598097.

The spelling of 11242489 in words is "eleven million, two hundred forty-two thousand, four hundred eighty-nine".