1338077939 has 16 divisors (see below), whose sum is σ = 1546757856. Its totient is φ = 1144012800.

The previous prime is 1338077929. The next prime is 1338077941. The reversal of 1338077939 is 9397708331.

It is a cyclic number.

It is not a de Polignac number, because 1338077939 - 2⁸ = 1338077683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1338077929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 424979 + ... + 428115.

It is an arithmetic number, because the mean of its divisors is an integer number (96672366).

Almost surely, 2^1338077939 is an apocalyptic number.

1338077939 is a deficient number, since it is larger than the sum of its proper divisors (208679917).

1338077939 is a wasteful number, since it uses less digits than its factorization.

1338077939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5446.

The product of its (nonzero) digits is 857304, while the sum is 50.

The square root of 1338077939 is about 36579.7476617868. The cubic root of 1338077939 is about 1101.9463993591.

It can be divided in two parts, 13380 and 77939, that added together give a palindrome (91319).

The spelling of 1338077939 in words is "one billion, three hundred thirty-eight million, seventy-seven thousand, nine hundred thirty-nine".