1344435409 has 4 divisors (see below), whose sum is σ = 1345267440. Its totient is φ = 1343603380.

The previous prime is 1344435403. The next prime is 1344435437. The reversal of 1344435409 is 9045344431.

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 a cyclic number.

It is not a de Polignac number, because 1344435409 - 2¹⁵ = 1344402641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1344435403) 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, 413587 + ... + 416824.

It is an arithmetic number, because the mean of its divisors is an integer number (336316860).

Almost surely, 2^1344435409 is an apocalyptic number.

It is an amenable number.

1344435409 is a deficient number, since it is larger than the sum of its proper divisors (832031).

1344435409 is an equidigital number, since it uses as much as digits as its factorization.

1344435409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832030.

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 1344435409 is about 36666.5434558536. The cubic root of 1344435409 is about 1103.6888303459.

The spelling of 1344435409 in words is "one billion, three hundred forty-four million, four hundred thirty-five thousand, four hundred nine".