389556538 has 16 divisors (see below), whose sum is σ = 670281984. Its totient is φ = 166335120.

The previous prime is 389556529. The next prime is 389556593. The reversal of 389556538 is 835655983.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47545 + ... + 55132.

It is an arithmetic number, because the mean of its divisors is an integer number (41892624).

Almost surely, 2^389556538 is an apocalyptic number.

389556538 is a deficient number, since it is larger than the sum of its proper divisors (280725446).

389556538 is a wasteful number, since it uses less digits than its factorization.

389556538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102957.

The product of its digits is 3888000, while the sum is 52.

The square root of 389556538 is about 19737.1866789571. The cubic root of 389556538 is about 730.3373295545.

The spelling of 389556538 in words is "three hundred eighty-nine million, five hundred fifty-six thousand, five hundred thirty-eight".