1344030221 has 4 divisors (see below), whose sum is σ = 1345158012. Its totient is φ = 1342902432.

The previous prime is 1344030209. The next prime is 1344030223. The reversal of 1344030221 is 1220304431.

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 351150121 + 992880100 = 18739^2 + 31510^2 .

It is a cyclic number.

It is not a de Polignac number, because 1344030221 - 2³⁰ = 270288397 is a prime.

It is a super-2 number, since 2×1344030221² = 3612834469922617682, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1344030193 and 1344030202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1344030223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 562106 + ... + 564491.

It is an arithmetic number, because the mean of its divisors is an integer number (336289503).

Almost surely, 2^1344030221 is an apocalyptic number.

It is an amenable number.

1344030221 is a deficient number, since it is larger than the sum of its proper divisors (1127791).

1344030221 is a wasteful number, since it uses less digits than its factorization.

1344030221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1127790.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1344030221 is about 36661.0177300085. The cubic root of 1344030221 is about 1103.5779420626.

Adding to 1344030221 its reverse (1220304431), we get a palindrome (2564334652).

The spelling of 1344030221 in words is "one billion, three hundred forty-four million, thirty thousand, two hundred twenty-one".