11309449 has 4 divisors (see below), whose sum is σ = 11699460. Its totient is φ = 10919440.

The previous prime is 11309411. The next prime is 11309483. The reversal of 11309449 is 94490311.

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 5257849 + 6051600 = 2293^2 + 2460^2 .

It is a cyclic number.

It is not a de Polignac number, because 11309449 - 2⁷ = 11309321 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 11309449.

It is not an unprimeable number, because it can be changed into a prime (11309489) 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, 194962 + ... + 195019.

It is an arithmetic number, because the mean of its divisors is an integer number (2924865).

Almost surely, 2^11309449 is an apocalyptic number.

It is an amenable number.

11309449 is a deficient number, since it is larger than the sum of its proper divisors (390011).

11309449 is an equidigital number, since it uses as much as digits as its factorization.

11309449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390010.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 11309449 is about 3362.9524230949. The cubic root of 11309449 is about 224.4642330706.

The spelling of 11309449 in words is "eleven million, three hundred nine thousand, four hundred forty-nine".