1344330021 has 8 divisors (see below), whose sum is σ = 1805335840. Its totient is φ = 889772112.

The previous prime is 1344330011. The next prime is 1344330037. The reversal of 1344330021 is 1200334431.

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

It is not a de Polignac number, because 1344330021 - 2⁵ = 1344329989 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 1344330021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1344330011) 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 7 ways as a sum of consecutive naturals, for example, 1611490 + ... + 1612323.

It is an arithmetic number, because the mean of its divisors is an integer number (225666980).

Almost surely, 2^1344330021 is an apocalyptic number.

It is an amenable number.

1344330021 is a deficient number, since it is larger than the sum of its proper divisors (461005819).

1344330021 is a wasteful number, since it uses less digits than its factorization.

1344330021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3223955.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1344330021 is about 36665.1063137692. The cubic root of 1344330021 is about 1103.6599908303.

Adding to 1344330021 its reverse (1200334431), we get a palindrome (2544664452).

The spelling of 1344330021 in words is "one billion, three hundred forty-four million, three hundred thirty thousand, twenty-one".