1344009 has 4 divisors (see below), whose sum is σ = 1792016. Its totient is φ = 896004.

The previous prime is 1343987. The next prime is 1344011. The reversal of 1344009 is 9004431.

1344009 = T₅₄₂ + T₅₄₃ + ... + T₅₅₀.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1344009 - 2¹⁵ = 1311241 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1344029) 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, 223999 + ... + 224004.

It is an arithmetic number, because the mean of its divisors is an integer number (448004).

2^1344009 is an apocalyptic number.

It is an amenable number.

1344009 is a deficient number, since it is larger than the sum of its proper divisors (448007).

1344009 is an equidigital number, since it uses as much as digits as its factorization.

1344009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448006.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 1344009 is about 1159.3140213074. The cubic root of 1344009 is about 110.3572133872.

The spelling of 1344009 in words is "one million, three hundred forty-four thousand, nine".