389444444 has 48 divisors (see below), whose sum is σ = 756510720. Its totient is φ = 174674880.

The previous prime is 389444437. The next prime is 389444459. The reversal of 389444444 is 444444983.

It is a junction number, because it is equal to n+sod(n) for n = 389444395 and 389444404.

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, 108974 + ... + 112490.

It is an arithmetic number, because the mean of its divisors is an integer number (15760640).

Almost surely, 2^389444444 is an apocalyptic number.

It is an amenable number.

389444444 is a deficient number, since it is larger than the sum of its proper divisors (367066276).

389444444 is a wasteful number, since it uses less digits than its factorization.

389444444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3618 (or 3616 counting only the distinct ones).

The product of its digits is 884736, while the sum is 44.

The square root of 389444444 is about 19734.3468095602. The cubic root of 389444444 is about 730.2672718708.

The spelling of 389444444 in words is "three hundred eighty-nine million, four hundred forty-four thousand, four hundred forty-four".