389881038 has 16 divisors (see below), whose sum is σ = 794475216. Its totient is φ = 127508160.

The previous prime is 389881033. The next prime is 389881057. The reversal of 389881038 is 830188983.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389881033) 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, 612703 + ... + 613338.

It is an arithmetic number, because the mean of its divisors is an integer number (49654701).

Almost surely, 2^389881038 is an apocalyptic number.

389881038 is an abundant number, since it is smaller than the sum of its proper divisors (404594178).

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

389881038 is a wasteful number, since it uses less digits than its factorization.

389881038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1226099.

The product of its (nonzero) digits is 331776, while the sum is 48.

The square root of 389881038 is about 19745.4054908984. The cubic root of 389881038 is about 730.5400632319.

The spelling of 389881038 in words is "three hundred eighty-nine million, eight hundred eighty-one thousand, thirty-eight".