1344444421 has 8 divisors (see below), whose sum is σ = 1350447264. Its totient is φ = 1338450960.

The previous prime is 1344444403. The next prime is 1344444443. The reversal of 1344444421 is 1244444431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1344444421 - 2¹¹ = 1344442373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1344444401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 529926 + ... + 532456.

It is an arithmetic number, because the mean of its divisors is an integer number (168805908).

Almost surely, 2^1344444421 is an apocalyptic number.

It is an amenable number.

1344444421 is a deficient number, since it is larger than the sum of its proper divisors (6002843).

1344444421 is a wasteful number, since it uses less digits than its factorization.

1344444421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4691.

The product of its digits is 24576, while the sum is 31.

The square root of 1344444421 is about 36666.6663469697. Note that the first 3 decimals coincide. The cubic root of 1344444421 is about 1103.6912964174.

Adding to 1344444421 its reverse (1244444431), we get a palindrome (2588888852).

The spelling of 1344444421 in words is "one billion, three hundred forty-four million, four hundred forty-four thousand, four hundred twenty-one".