1338039345 has 16 divisors (see below), whose sum is σ = 2141419392. Its totient is φ = 713435520.

The previous prime is 1338039341. The next prime is 1338039377. The reversal of 1338039345 is 5439308331.

It is not a de Polignac number, because 1338039345 - 2² = 1338039341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1338039341) 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, 63909 + ... + 82221.

It is an arithmetic number, because the mean of its divisors is an integer number (133838712).

Almost surely, 2^1338039345 is an apocalyptic number.

1338039345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1338039345 is a deficient number, since it is larger than the sum of its proper divisors (803380047).

1338039345 is a wasteful number, since it uses less digits than its factorization.

1338039345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23192.

The product of its (nonzero) digits is 116640, while the sum is 39.

The square root of 1338039345 is about 36579.2201256396. The cubic root of 1338039345 is about 1101.9358048272.

It can be divided in two parts, 13380 and 39345, that added together give a palindrome (52725).

The spelling of 1338039345 in words is "one billion, three hundred thirty-eight million, thirty-nine thousand, three hundred forty-five".