389143338 has 8 divisors (see below), whose sum is σ = 778286688. Its totient is φ = 129714444.

The previous prime is 389143309. The next prime is 389143343. The reversal of 389143338 is 833341983.

It is a happy number.

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

389143338 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 389143338.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32428606 + ... + 32428617.

It is an arithmetic number, because the mean of its divisors is an integer number (97285836).

Almost surely, 2^389143338 is an apocalyptic number.

389143338 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

389143338 is a wasteful number, since it uses less digits than its factorization.

389143338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64857228.

The product of its digits is 186624, while the sum is 42.

The square root of 389143338 is about 19726.7163511822. The cubic root of 389143338 is about 730.0790169049.

The spelling of 389143338 in words is "three hundred eighty-nine million, one hundred forty-three thousand, three hundred thirty-eight".