1344021336 has 192 divisors, whose sum is σ = 4341792000. Its totient is φ = 381552768.

The previous prime is 1344021319. The next prime is 1344021347. The reversal of 1344021336 is 6331204431.

1344021336 is a `hidden beast` number, since 1 + 3 + 440 + 213 + 3 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 3850890 + ... + 3851238.

It is an arithmetic number, because the mean of its divisors is an integer number (22613500).

Almost surely, 2^1344021336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1344021336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2170896000).

1344021336 is an abundant number, since it is smaller than the sum of its proper divisors (2997770664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1344021336 is a wasteful number, since it uses less digits than its factorization.

1344021336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660 (or 644 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 1344021336 is about 36660.8965520485. The cubic root of 1344021336 is about 1103.5755102444.

Adding to 1344021336 its reverse (6331204431), we get a palindrome (7675225767).

The spelling of 1344021336 in words is "one billion, three hundred forty-four million, twenty-one thousand, three hundred thirty-six".