1338079459 has 4 divisors (see below), whose sum is σ = 1384220160. Its totient is φ = 1291938760.

The previous prime is 1338079453. The next prime is 1338079529. The reversal of 1338079459 is 9549708331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1338079459 - 2¹⁵ = 1338046691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1338079453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23070307 + ... + 23070364.

It is an arithmetic number, because the mean of its divisors is an integer number (346055040).

Almost surely, 2^1338079459 is an apocalyptic number.

1338079459 is a deficient number, since it is larger than the sum of its proper divisors (46140701).

1338079459 is an equidigital number, since it uses as much as digits as its factorization.

1338079459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46140700.

The product of its (nonzero) digits is 816480, while the sum is 49.

The square root of 1338079459 is about 36579.7684383048. The cubic root of 1338079459 is about 1101.9468166138.

The spelling of 1338079459 in words is "one billion, three hundred thirty-eight million, seventy-nine thousand, four hundred fifty-nine".