1338232829 has 2 divisors, whose sum is σ = 1338232830. Its totient is φ = 1338232828.

The previous prime is 1338232817. The next prime is 1338232849. The reversal of 1338232829 is 9282328331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 785512729 + 552720100 = 28027^2 + 23510^2 .

It is an emirp because it is prime and its reverse (9282328331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1338232829 - 2¹² = 1338228733 is a prime.

It is a super-2 number, since 2×1338232829² = 3581734209226686482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1338232849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 669116414 + 669116415.

It is an arithmetic number, because the mean of its divisors is an integer number (669116415).

Almost surely, 2^1338232829 is an apocalyptic number.

It is an amenable number.

1338232829 is a deficient number, since it is larger than the sum of its proper divisors (1).

1338232829 is an equidigital number, since it uses as much as digits as its factorization.

1338232829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 41.

The square root of 1338232829 is about 36581.8647556409. The cubic root of 1338232829 is about 1101.9889165368.

The spelling of 1338232829 in words is "one billion, three hundred thirty-eight million, two hundred thirty-two thousand, eight hundred twenty-nine".