389107444 has 36 divisors (see below), whose sum is σ = 751395204. Its totient is φ = 176176000.

The previous prime is 389107427. The next prime is 389107463. The reversal of 389107444 is 444701983.

It can be written as a sum of positive squares in 2 ways, for example, as 240560100 + 148547344 = 15510^2 + 12188^2 .

It is a junction number, because it is equal to n+sod(n) for n = 389107397 and 389107406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 134574 + ... + 137434.

It is an arithmetic number, because the mean of its divisors is an integer number (20872089).

Almost surely, 2^389107444 is an apocalyptic number.

It is an amenable number.

389107444 is a deficient number, since it is larger than the sum of its proper divisors (362287760).

389107444 is a wasteful number, since it uses less digits than its factorization.

389107444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3168 (or 3155 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 389107444 is about 19725.8065487827. The cubic root of 389107444 is about 730.0565690822.

The spelling of 389107444 in words is "three hundred eighty-nine million, one hundred seven thousand, four hundred forty-four".