389943233 has 8 divisors (see below), whose sum is σ = 393220800. Its totient is φ = 386672688.

The previous prime is 389943223. The next prime is 389943241. The reversal of 389943233 is 332349983.

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 389943233 - 2⁴ = 389943217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (389943223) 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, 206588 + ... + 208466.

It is an arithmetic number, because the mean of its divisors is an integer number (49152600).

Almost surely, 2^389943233 is an apocalyptic number.

It is an amenable number.

389943233 is a deficient number, since it is larger than the sum of its proper divisors (3277567).

389943233 is a wasteful number, since it uses less digits than its factorization.

389943233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3511.

The product of its digits is 419904, while the sum is 44.

The square root of 389943233 is about 19746.9803514360. The cubic root of 389943233 is about 730.5789071518.

The spelling of 389943233 in words is "three hundred eighty-nine million, nine hundred forty-three thousand, two hundred thirty-three".