1344788536 has 288 divisors, whose sum is σ = 3611971440. Its totient is φ = 463325184.

The previous prime is 1344788477. The next prime is 1344788539. The reversal of 1344788536 is 6358874431.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a self number, because there is not a number n which added to its sum of digits gives 1344788536.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1344788539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 31274131 + ... + 31274173.

Almost surely, 2^1344788536 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 1344788536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1805985720).

1344788536 is an abundant number, since it is smaller than the sum of its proper divisors (2267182904).

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

1344788536 is a wasteful number, since it uses less digits than its factorization.

1344788536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131 (or 101 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 49.

The square root of 1344788536 is about 36671.3585240580. The cubic root of 1344788536 is about 1103.7854528649.

The spelling of 1344788536 in words is "one billion, three hundred forty-four million, seven hundred eighty-eight thousand, five hundred thirty-six".