389140444 has 96 divisors (see below), whose sum is σ = 924940800. Its totient is φ = 138620160.

The previous prime is 389140393. The next prime is 389140457. The reversal of 389140444 is 444041983.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 168562 + ... + 170854.

It is an arithmetic number, because the mean of its divisors is an integer number (9634800).

Almost surely, 2^389140444 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 389140444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (462470400).

389140444 is an abundant number, since it is smaller than the sum of its proper divisors (535800356).

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

389140444 is a wasteful number, since it uses less digits than its factorization.

389140444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2363 (or 2361 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 389140444 is about 19726.6429987466. The cubic root of 389140444 is about 730.0772070714.

The spelling of 389140444 in words is "three hundred eighty-nine million, one hundred forty thousand, four hundred forty-four".