389436368 has 80 divisors (see below), whose sum is σ = 823447296. Its totient is φ = 177914880.

The previous prime is 389436343. The next prime is 389436373. The reversal of 389436368 is 863634983.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 799421 + ... + 799907.

Almost surely, 2^389436368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 389436368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (411723648).

389436368 is an abundant number, since it is smaller than the sum of its proper divisors (434010928).

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

389436368 is a wasteful number, since it uses less digits than its factorization.

389436368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612 (or 606 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 50.

The square root of 389436368 is about 19734.1421906299. The cubic root of 389436368 is about 730.2622239285.

The spelling of 389436368 in words is "three hundred eighty-nine million, four hundred thirty-six thousand, three hundred sixty-eight".