1238538329 has 8 divisors (see below), whose sum is σ = 1431377280. Its totient is φ = 1049675616.

The previous prime is 1238538311. The next prime is 1238538341. The reversal of 1238538329 is 9238358321.

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 1238538329 - 2¹⁶ = 1238472793 is a prime.

It is a super-2 number, since 2×1238538329² = 3067954384804224482, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1238538329.

It is not an unprimeable number, because it can be changed into a prime (1238538359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 993389 + ... + 994634.

It is an arithmetic number, because the mean of its divisors is an integer number (178922160).

Almost surely, 2^1238538329 is an apocalyptic number.

It is an amenable number.

1238538329 is a deficient number, since it is larger than the sum of its proper divisors (192838951).

1238538329 is an equidigital number, since it uses as much as digits as its factorization.

1238538329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988119.

The product of its digits is 311040, while the sum is 44.

The square root of 1238538329 is about 35192.8732700244. The cubic root of 1238538329 is about 1073.9147740100.

The spelling of 1238538329 in words is "one billion, two hundred thirty-eight million, five hundred thirty-eight thousand, three hundred twenty-nine".