329161338 has 48 divisors (see below), whose sum is σ = 786801600. Its totient is φ = 98619840.

The previous prime is 329161331. The next prime is 329161367. The reversal of 329161338 is 833161923.

329161338 is a `hidden beast` number, since 3 + 2 + 9 + 1 + 613 + 38 = 666.

It is not an unprimeable number, because it can be changed into a prime (329161331) 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 23 ways as a sum of consecutive naturals, for example, 8283 + ... + 26961.

It is an arithmetic number, because the mean of its divisors is an integer number (16391700).

Almost surely, 2^329161338 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 329161338, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (393400800).

329161338 is an abundant number, since it is smaller than the sum of its proper divisors (457640262).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

329161338 is a wasteful number, since it uses less digits than its factorization.

329161338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18787 (or 18784 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 329161338 is about 18142.8040280437. The cubic root of 329161338 is about 690.4564213971.

The spelling of 329161338 in words is "three hundred twenty-nine million, one hundred sixty-one thousand, three hundred thirty-eight".