1338574841 has 2 divisors, whose sum is σ = 1338574842. Its totient is φ = 1338574840.

The previous prime is 1338574819. The next prime is 1338574859. The reversal of 1338574841 is 1484758331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 879715600 + 458859241 = 29660^2 + 21421^2 .

It is a cyclic number.

It is not a de Polignac number, because 1338574841 - 2⁶ = 1338574777 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1338574792 and 1338574801.

It is not a weakly prime, because it can be changed into another prime (1338574801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 669287420 + 669287421.

It is an arithmetic number, because the mean of its divisors is an integer number (669287421).

Almost surely, 2^1338574841 is an apocalyptic number.

It is an amenable number.

1338574841 is a deficient number, since it is larger than the sum of its proper divisors (1).

1338574841 is an equidigital number, since it uses as much as digits as its factorization.

1338574841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 322560, while the sum is 44.

The square root of 1338574841 is about 36586.5390683514. The cubic root of 1338574841 is about 1102.0827869312.

The spelling of 1338574841 in words is "one billion, three hundred thirty-eight million, five hundred seventy-four thousand, eight hundred forty-one".