389049444 has 72 divisors (see below), whose sum is σ = 1127206080. Its totient is φ = 110832192.

The previous prime is 389049421. The next prime is 389049499. The reversal of 389049444 is 444940983.

389049444 is a `hidden beast` number, since 38 + 90 + 494 + 44 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 389049444.

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 23 ways as a sum of consecutive naturals, for example, 91927 + ... + 96065.

It is an arithmetic number, because the mean of its divisors is an integer number (15655640).

Almost surely, 2^389049444 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 389049444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (563603040).

389049444 is an abundant number, since it is smaller than the sum of its proper divisors (738156636).

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

389049444 is a wasteful number, since it uses less digits than its factorization.

389049444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4529 (or 4524 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The square root of 389049444 is about 19724.3363386452. The cubic root of 389049444 is about 730.0202934247.

The spelling of 389049444 in words is "three hundred eighty-nine million, forty-nine thousand, four hundred forty-four".