11409243 has 16 divisors (see below), whose sum is σ = 15699840. Its totient is φ = 7366464.

The previous prime is 11409221. The next prime is 11409287. The reversal of 11409243 is 34290411.

It is not a de Polignac number, because 11409243 - 2⁹ = 11408731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11402243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12480 + ... + 13362.

It is an arithmetic number, because the mean of its divisors is an integer number (981240).

Almost surely, 2^11409243 is an apocalyptic number.

11409243 is a deficient number, since it is larger than the sum of its proper divisors (4290597).

11409243 is an equidigital number, since it uses as much as digits as its factorization.

11409243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 11409243 is about 3377.7570960624. The cubic root of 11409243 is about 225.1225209250.

Adding to 11409243 its reverse (34290411), we get a palindrome (45699654).

The spelling of 11409243 in words is "eleven million, four hundred nine thousand, two hundred forty-three".