1338124441 has 4 divisors (see below), whose sum is σ = 1339420852. Its totient is φ = 1336828032.

The previous prime is 1338124399. The next prime is 1338124453. The reversal of 1338124441 is 1444218331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1444218331 = 691 ⋅2090041.

It can be written as a sum of positive squares in 2 ways, for example, as 1274204416 + 63920025 = 35696^2 + 7995^2 .

It is a cyclic number.

It is not a de Polignac number, because 1338124441 - 2¹¹ = 1338122393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1338121441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 646656 + ... + 648721.

It is an arithmetic number, because the mean of its divisors is an integer number (334855213).

Almost surely, 2^1338124441 is an apocalyptic number.

It is an amenable number.

1338124441 is a deficient number, since it is larger than the sum of its proper divisors (1296411).

1338124441 is a wasteful number, since it uses less digits than its factorization.

1338124441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1296410.

The product of its digits is 9216, while the sum is 31.

The square root of 1338124441 is about 36580.3832812069. The cubic root of 1338124441 is about 1101.9591644645.

The spelling of 1338124441 in words is "one billion, three hundred thirty-eight million, one hundred twenty-four thousand, four hundred forty-one".