389016138 has 16 divisors (see below), whose sum is σ = 889179840. Its totient is φ = 111147456.

The previous prime is 389016109. The next prime is 389016139. The reversal of 389016138 is 831610983.

It is a junction number, because it is equal to n+sod(n) for n = 389016096 and 389016105.

It is not an unprimeable number, because it can be changed into a prime (389016139) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4631103 + ... + 4631186.

It is an arithmetic number, because the mean of its divisors is an integer number (55573740).

Almost surely, 2^389016138 is an apocalyptic number.

389016138 is an abundant number, since it is smaller than the sum of its proper divisors (500163702).

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

389016138 is a wasteful number, since it uses less digits than its factorization.

389016138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9262301.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 389016138 is about 19723.4920336131. The cubic root of 389016138 is about 729.9994608115. Note that the first 3 decimals are identical.

The spelling of 389016138 in words is "three hundred eighty-nine million, sixteen thousand, one hundred thirty-eight".