1338238229 has 8 divisors (see below), whose sum is σ = 1419427680. Its totient is φ = 1258124400.

The previous prime is 1338238199. The next prime is 1338238259. The reversal of 1338238229 is 9228328331.

It is an interprime number because it is at equal distance from previous prime (1338238199) and next prime (1338238259).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1338238229 - 2²⁰ = 1337189653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1338238259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266342 + ... + 271319.

It is an arithmetic number, because the mean of its divisors is an integer number (177428460).

Almost surely, 2^1338238229 is an apocalyptic number.

1338238229 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1338238229 is a deficient number, since it is larger than the sum of its proper divisors (81189451).

1338238229 is a wasteful number, since it uses less digits than its factorization.

1338238229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537811.

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

The square root of 1338238229 is about 36581.9385626295. The cubic root of 1338238229 is about 1101.9903987732.

The spelling of 1338238229 in words is "one billion, three hundred thirty-eight million, two hundred thirty-eight thousand, two hundred twenty-nine".