1344738816 has 180 divisors, whose sum is σ = 4031033292. Its totient is φ = 431542272.

The previous prime is 1344738803. The next prime is 1344738817. The reversal of 1344738816 is 6188374431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1344738817) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3875155 + ... + 3875501.

Almost surely, 2^1344738816 is an apocalyptic number.

1344738816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1344738816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2015516646).

1344738816 is an abundant number, since it is smaller than the sum of its proper divisors (2686294476).

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

1344738816 is an equidigital number, since it uses as much as digits as its factorization.

1344738816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429 (or 381 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 1344738816 is about 36670.6806045375. The cubic root of 1344738816 is about 1103.7718495145.

The spelling of 1344738816 in words is "one billion, three hundred forty-four million, seven hundred thirty-eight thousand, eight hundred sixteen".