389144645 has 8 divisors (see below), whose sum is σ = 467091456. Its totient is φ = 311237136.

The previous prime is 389144633. The next prime is 389144663. The reversal of 389144645 is 546441983.

389144645 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

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 389144645 - 2⁴ = 389144629 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 389144596 and 389144605.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20444 + ... + 34586.

It is an arithmetic number, because the mean of its divisors is an integer number (58386432).

Almost surely, 2^389144645 is an apocalyptic number.

It is an amenable number.

389144645 is a deficient number, since it is larger than the sum of its proper divisors (77946811).

389144645 is a wasteful number, since it uses less digits than its factorization.

389144645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19651.

The product of its digits is 414720, while the sum is 44.

The square root of 389144645 is about 19726.7494788168. The cubic root of 389144645 is about 730.0798342663.

The spelling of 389144645 in words is "three hundred eighty-nine million, one hundred forty-four thousand, six hundred forty-five".