1338713789 has 8 divisors (see below), whose sum is σ = 1536308928. Its totient is φ = 1142706240.

The previous prime is 1338713767. The next prime is 1338713791. The reversal of 1338713789 is 9873178331.

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

It is a cyclic number.

It is not a de Polignac number, because 1338713789 - 2¹⁶ = 1338648253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1338712789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 395087 + ... + 398460.

It is an arithmetic number, because the mean of its divisors is an integer number (192038616).

Almost surely, 2^1338713789 is an apocalyptic number.

It is an amenable number.

1338713789 is a deficient number, since it is larger than the sum of its proper divisors (197595139).

1338713789 is an equidigital number, since it uses as much as digits as its factorization.

1338713789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793795.

The product of its digits is 762048, while the sum is 50.

The square root of 1338713789 is about 36588.4379141827. The cubic root of 1338713789 is about 1102.1209187552.

The spelling of 1338713789 in words is "one billion, three hundred thirty-eight million, seven hundred thirteen thousand, seven hundred eighty-nine".