389404430 has 32 divisors (see below), whose sum is σ = 747187200. Its totient is φ = 145690272.

The previous prime is 389404427. The next prime is 389404453. The reversal of 389404430 is 34404983.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2039 + ... + 27981.

It is an arithmetic number, because the mean of its divisors is an integer number (23349600).

Almost surely, 2^389404430 is an apocalyptic number.

389404430 is a deficient number, since it is larger than the sum of its proper divisors (357782770).

389404430 is a wasteful number, since it uses less digits than its factorization.

389404430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26048.

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 389404430 is about 19733.3329673423. The cubic root of 389404430 is about 730.2422602456.

The spelling of 389404430 in words is "three hundred eighty-nine million, four hundred four thousand, four hundred thirty".