1338782039 has 16 divisors (see below), whose sum is σ = 1560748800. Its totient is φ = 1124613504.

The previous prime is 1338782021. The next prime is 1338782083. The reversal of 1338782039 is 9302878331.

It is not a de Polignac number, because 1338782039 - 2²⁴ = 1322004823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1338782099) 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 15 ways as a sum of consecutive naturals, for example, 134372 + ... + 143990.

It is an arithmetic number, because the mean of its divisors is an integer number (97546800).

Almost surely, 2^1338782039 is an apocalyptic number.

1338782039 is a deficient number, since it is larger than the sum of its proper divisors (221966761).

1338782039 is an equidigital number, since it uses as much as digits as its factorization.

1338782039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10022.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 1338782039 is about 36589.3705739795. The cubic root of 1338782039 is about 1102.1396477958.

The spelling of 1338782039 in words is "one billion, three hundred thirty-eight million, seven hundred eighty-two thousand, thirty-nine".