389444472 has 24 divisors (see below), whose sum is σ = 1054745640. Its totient is φ = 129814800.

The previous prime is 389444467. The next prime is 389444513. The reversal of 389444472 is 274444983.

It is a tau number, because it is divible by the number of its divisors (24).

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 5 ways as a sum of consecutive naturals, for example, 2704404 + ... + 2704547.

It is an arithmetic number, because the mean of its divisors is an integer number (43947735).

Almost surely, 2^389444472 is an apocalyptic number.

It is an amenable number.

389444472 is an abundant number, since it is smaller than the sum of its proper divisors (665301168).

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

389444472 is a wasteful number, since it uses less digits than its factorization.

389444472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5408963 (or 5408956 counting only the distinct ones).

The product of its digits is 774144, while the sum is 45.

The square root of 389444472 is about 19734.3475189832. The cubic root of 389444472 is about 730.2672893722.

The spelling of 389444472 in words is "three hundred eighty-nine million, four hundred forty-four thousand, four hundred seventy-two".