1338681744 has 45 divisors (see below), whose sum is σ = 3747678753. Its totient is φ = 446080896.

The previous prime is 1338681697. The next prime is 1338681761. The reversal of 1338681744 is 4471868331.

The square root of 1338681744 is 36588.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 144288144 + 1194393600 = 12012^2 + 34560^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1338681744.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 437532 + ... + 440580.

Almost surely, 2^1338681744 is an apocalyptic number.

1338681744 is the 36588-th square number.

It is an amenable number.

1338681744 is an abundant number, since it is smaller than the sum of its proper divisors (2408997009).

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

1338681744 is an frugal number, since it uses more digits than its factorization.

1338681744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6112 (or 3054 counting only the distinct ones).

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

The cubic root of 1338681744 is about 1102.1121248052.

The spelling of 1338681744 in words is "one billion, three hundred thirty-eight million, six hundred eighty-one thousand, seven hundred forty-four".